PROJECTORS · YOUR NEXT FACE-OFF

ViewSonic LS901HD vs ViewSonic LSD401HD

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

ViewSonic LS901HD

LS901HD · exact LS901HD UK manufacturer catalogue configuration

Full product profile Official image

Exact model & source notes

ViewSonic LS901HD in its exact UK manufacturer catalogue configuration. Compare the declared projected image, actual light-source and brightness basis, optical placement and source-listed inputs together.

Specifications checked 17 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

WHICH SUITS YOU?

Choose the LS901HD for

Higher stated minimum optical throw ratio: 1.2 vs 1.13

Choose the LSD401HD for

Lighter stated weight: 3,000 g vs 4,770 g

Built from verified specifications that differ. Not a rating or a recommendation.

See the 25 verified differences

THE CONTENDER

ViewSonic LSD401HD

LSD401HD · exact LSD401HD UK manufacturer catalogue configuration

Full product profile Official image

Exact model & source notes

ViewSonic LSD401HD in its exact UK manufacturer catalogue configuration. Compare the declared projected image, actual light-source and brightness basis, optical placement and source-listed inputs together.

Specifications checked 17 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

LS901HD UK & US retailers

UK & US price history: no verified listing yet

LSD401HD UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison

Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.

SPECIFICATIONS SIDE BY SIDE7 topics

SELECTED TOPIC

01 / 07

Brightness

Check the exact configuration and source conditions for your use.

ViewSonic LS901HD6000 (ANSI Lumens)

Manufacturer specification · Manufacturer claim. Actual published method: ANSI lumens. Centre brightness, dynamic contrast and other lumen methods remain separate; no conversion or measured performance is asserted. Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness.

Source 1

ViewSonic LSD401HD4000 (ANSI Lumens)

Source 1

Explore the full specifications

Match the screen, lens and room. Check the stated throw ratio, lens setup and connections. ANSI, ISO, LED and centre-lumen claims keep their different measurement bases; they are not an overall picture-quality score. A projected 4K claim does not by itself identify the physical imager pixel grid. Accepted input modes remain separate.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

25 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.

Brightness

In Visual facts

ViewSonic LS901HD6000 (ANSI Lumens)

ViewSonic LSD401HD4000 (ANSI Lumens)

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Throw ratio

In Visual facts

ViewSonic LS901HD1.2-2.04

ViewSonic LSD401HD1.13-1.47

Sources

ViewSonic LS901HD

Manufacturer specification

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

Manufacturer specification

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Dimensions

In Visual facts

ViewSonic LS901HD337x280x132mm (13.3x11x5.2 in)

ViewSonic LSD401HD286x216x129mm (11.3x8.5x5.1 in)

Sources

ViewSonic LS901HD

Manufacturer specification · Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxDxH) with Adjustment Foot.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

A size or weight trade-off; it does not establish the better product.

Weight

In Visual facts

ViewSonic LS901HD4770 g

ViewSonic LSD401HD3000 g

Sources

ViewSonic LS901HD

Manufacturer specification · Manufacturer Net Weight: 4.77kg (10.52 lbs). Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

Manufacturer specification · Manufacturer Net Weight: 3kg (6.61 lbs). Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted.

ViewSonic LSD401HD — official UK technical specifications

A size or weight trade-off; it does not establish the better product.

Published ANSI brightness

In Visual facts

ViewSonic LS901HD6000 ANSI lm

ViewSonic LSD401HD4000 ANSI lm

Sources

ViewSonic LS901HD

Manufacturer specification · Actual source field Brightness: 6000 (ANSI Lumens). Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

Manufacturer specification · Actual source field Brightness: 4000 (ANSI Lumens). Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion.

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Dimensions (WxDxH) with Adjustment Foot

In Visual facts

ViewSonic LS901HD337x280x132mm (13.3x11x5.2 in)

ViewSonic LSD401HD286x216x129mm (11.3x8.5x5.1 in)

Sources

ViewSonic LS901HD

Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

A size or weight trade-off; it does not establish the better product.

Show 19 more verified differences

Gross Weight

ViewSonic LS901HD6.7kg (14.77 lbs)

ViewSonic LSD401HD4.5kg (9.92 lbs)

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

A size or weight trade-off; it does not establish the better product.

Net Weight

ViewSonic LS901HD4.77kg (10.52 lbs)

ViewSonic LSD401HD3kg (6.61 lbs)

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

A size or weight trade-off; it does not establish the better product.

OSD Language

ViewSonic LS901HDEnglish, French, German, Spanish, Italian, Portuguese, Dutch, Swedish, Finnish, Greek, Norwegian/Danish, Polish, Russian, Simplified_Chinese, Traditional_Chinese, Korean, Arabic, Japanese, Thai, Hungarian, Czechoslovak, Turkish, Farsi. Vietnamese, Indonesian, Romanian, Slovakian, total 27 languages

ViewSonic LSD401HDEnglish, French, Spanish, Thai, Korean, German, Italian, Russian, Swedish, Dutch, Polish, Czech, T-Chinese, S-Chinese, Japanese, Turkish, Portuguese, Finnish, Indonesian, Arabic, Vietnamese, Hungarian, Norsk, total 23 languages

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Power Consumption

ViewSonic LS901HDNormal: 245W Standby: <0.5W

ViewSonic LSD401HDNormal: 143W Standby: <0.5W

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Power Supply Voltage

ViewSonic LS901HD100-240V+/- 10%, 50/60Hz (AC in)

ViewSonic LSD401HDPower adaptor: Input: 100~240V Output: 19.5VDC / 9.23A

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Audible Noise (Eco)

ViewSonic LS901HD25dB

ViewSonic LSD401HD27dB

Sources

ViewSonic LS901HD

Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Audible Noise (Normal)

ViewSonic LS901HD31dB

ViewSonic LSD401HD32dB

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Brightness

ViewSonic LS901HD6000 (ANSI Lumens)

ViewSonic LSD401HD4000 (ANSI Lumens)

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Brightness (Center Lumens)

ViewSonic LS901HD6600

ViewSonic LSD401HD4400

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Input Lag

ViewSonic LS901HD16ms

ViewSonic LSD401HD16.7ms

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Lens

ViewSonic LS901HDF=2.3-3.0, f=17.63-27.9mm

ViewSonic LSD401HDF=2.43-2.78, f=16.90-21.61mm

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Optical Zoom

ViewSonic LS901HD1.7X

ViewSonic LSD401HD1.3X

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Projection Offset

ViewSonic LS901HD154% +/- 10%

ViewSonic LSD401HD132%+/-10%

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Throw Distance

ViewSonic LS901HD0.80-13.55m (100”@2.66m)

ViewSonic LSD401HD0.75-9.76m (100"@2.50m)

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Throw Ratio

ViewSonic LS901HD1.2-2.04

ViewSonic LSD401HD1.13-1.47

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Vertical Scan Rate

ViewSonic LS901HD23-120Hz

ViewSonic LSD401HD24-120Hz

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Maximum optical throw ratio

ViewSonic LS901HD2.04

ViewSonic LSD401HD1.47

Sources

ViewSonic LS901HD

Manufacturer specification · Exact manufacturer optical throw row: 1.2-2.04. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

Manufacturer specification · Exact manufacturer optical throw row: 1.13-1.47. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Minimum optical throw ratio

In Visual facts

ViewSonic LS901HD1.2

ViewSonic LSD401HD1.13

Sources

ViewSonic LS901HD

Manufacturer specification · Exact manufacturer optical throw row: 1.2-2.04. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

Manufacturer specification · Exact manufacturer optical throw row: 1.13-1.47. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.

ViewSonic LSD401HD — official UK technical specifications

Check the exact configuration and source conditions for your use.

Packing Dimensions

ViewSonic LS901HD496x387x195mm (19.5x15.2x7.7 in)

ViewSonic LSD401HD400x280x155mm (15.7x11x6.1 in)

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

A size or weight trade-off; it does not establish the better product.

Missing or non-comparable evidence (6)

Connections

ViewSonic LS901HD2 (HDMI 2.0, HDCP 2.2 HDMI 1.4, HDCP 1.4) (HDMI); 1 × Audio-out (3.5mm); Speaker (15W x2); USB Type A (Power) (1 (5V/1.5A)); 1 × RS232 (DB 9-pin male); 1 × RJ45 (LAN control); 1 (share with USB A Output) (USB Type A (Services))

ViewSonic LSD401HD2 (HDMI 2.0, HDCP 2.2) (HDMI); 1 × Audio-out (3.5mm); Speaker (15W); USB Type A (Power) (1 (5V/1.5A)); 1 × RS232 (DB 9-pin male); 1 × RJ45 (LAN control); 1 (share with USB A Output) (USB Type A (Services))

Sources

ViewSonic LS901HD

Manufacturer specification · Source-listed physical inputs, outputs and controls. Service USB, power outputs, connector versions and eARC claims retain their separate scopes; no full-bandwidth or compatibility guarantee inferred. Manufacturer section Input. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI. Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Audio-out (3.5mm). Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Speaker. Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type A (Power). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 (DB 9-pin male). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RJ45 (LAN control). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type A (Services).

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

One source states less detail or a rounded figure. This is not a verified difference; check the exact configuration.

Physical imager pixel grid

ViewSonic LS901HDNot verified

ViewSonic LSD401HDNot verified

Sources

ViewSonic LS901HD

A physical imager pixel grid is not separately established by these supplied sources. The declared display/projected resolution and chip diagonal do not fill this field. · Manufacturer specification

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

A physical imager pixel grid is not separately established by these supplied sources. The declared display/projected resolution and chip diagonal do not fill this field. · Manufacturer specification

ViewSonic LSD401HD — official UK technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

HDMI

ViewSonic LS901HD2 (HDMI 2.0, HDCP 2.2 HDMI 1.4, HDCP 1.4)

ViewSonic LSD401HD2 (HDMI 2.0, HDCP 2.2)

Sources

ViewSonic LS901HD

Manufacturer specification · Manufacturer section Input. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

One source states less detail or a rounded figure. This is not a verified difference; check the exact configuration.

Carry Bag

ViewSonic LS901HDNot verified

ViewSonic LSD401HDPJ-CASE-008

Sources

ViewSonic LS901HD

No source recorded for this side.

ViewSonic LSD401HD

Manufacturer specification · Manufacturer section Optional Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

ViewSonic LSD401HD — official UK technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Speaker

ViewSonic LS901HD15W x2

ViewSonic LSD401HD15W

Sources

ViewSonic LS901HD

Manufacturer specification · Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

ViewSonic LSD401HD — official UK technical specifications

One source states less detail or a rounded figure. This is not a verified difference; check the exact configuration.

Lens Shift V. Range

ViewSonic LS901HD0%, -21%

ViewSonic LSD401HDNot verified

Sources

ViewSonic LS901HD

ViewSonic LS901HD — official UK technical specifications

ViewSonic LSD401HD

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

29 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

ViewSonic LS901HD

What it brings

The manufacturer supplies model-specific projection, placement and connection specifications. Use the stated throw ratio, actual image size and lens configuration to plan your installation.
Manufacturer source

What to check

Manufacturer image and brightness claims are not an independent picture-quality test. Physical imager pixels, input limits, measurement methods, bundled TV devices and regional accessories need their own stated source scope; no overall winner or current stock is established.
Manufacturer source

ViewSonic LSD401HD

What it brings

The manufacturer supplies model-specific projection, placement and connection specifications. Use the stated throw ratio, actual image size and lens configuration to plan your installation.
Manufacturer source

What to check

Manufacturer image and brightness claims are not an independent picture-quality test. Physical imager pixels, input limits, measurement methods, bundled TV devices and regional accessories need their own stated source scope; no overall winner or current stock is established.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

60 of 60 specifications Sources in each row

Source-backed specifications for ViewSonic LS901HD and ViewSonic LSD401HD
Specification	ViewSonic LS901HD	ViewSonic LSD401HD

Projected resolution Sources ViewSonic LS901HD Manufacturer specification · Source label Native Resolution. This is the manufacturer display/projected-image claim; it does not independently establish the physical DMD/imager pixel grid. Accepted signal resolution remains separate. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Source label Native Resolution. This is the manufacturer display/projected-image claim; it does not independently establish the physical DMD/imager pixel grid. Accepted signal resolution remains separate. ViewSonic LSD401HD — official UK technical specifications	1920x1080	1920x1080
Projection technology Sources ViewSonic LS901HD Manufacturer specification ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification ViewSonic LSD401HD — official UK technical specifications	DMD · 0.65" 1080p	DMD · 0.65" 1080P
Projection System Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	0.65" 1080p	0.65" 1080P
Native Resolution Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1920x1080	1920x1080
Contrast Ratio Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	3000000:1	3000000:1
Display Color Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1.07 Billion Colors	1.07 Billion Colors
Resolution Support Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	VGA(640 x 480) to 4K UHD(3840 x 2160)	VGA(640 x 480) to 4K UHD(3840 x 2160)

Light source Sources ViewSonic LS901HD Manufacturer specification ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification ViewSonic LSD401HD — official UK technical specifications	Laser Phosphor	Laser Phosphor
BrightnessDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer claim. Actual published method: ANSI lumens. Centre brightness, dynamic contrast and other lumen methods remain separate; no conversion or measured performance is asserted. Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer claim. Actual published method: ANSI lumens. Centre brightness, dynamic contrast and other lumen methods remain separate; no conversion or measured performance is asserted. Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness. ViewSonic LSD401HD — official UK technical specifications	6000 (ANSI Lumens)	4000 (ANSI Lumens)
Published ANSI brightnessDifferent Sources ViewSonic LS901HD Manufacturer specification · Actual source field Brightness: 6000 (ANSI Lumens). Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Actual source field Brightness: 4000 (ANSI Lumens). Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion. ViewSonic LSD401HD — official UK technical specifications	6000 ANSI lm	4000 ANSI lm
BrightnessDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	6000 (ANSI Lumens)	4000 (ANSI Lumens)
Brightness (Center Lumens)Different Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	6600	4400
Light Source Type Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	Laser Phosphor	Laser Phosphor
Light Source Life (hours) with Normal Mode Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	20000	20000
Light Source Life (hours) with SuperEco Mode Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	30000 (Eco)	30000 (Eco)

Throw ratioDifferent Sources ViewSonic LS901HD Manufacturer specification ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification ViewSonic LSD401HD — official UK technical specifications	1.2-2.04	1.13-1.47
Minimum optical throw ratioDifferent Sources ViewSonic LS901HD Manufacturer specification · Exact manufacturer optical throw row: 1.2-2.04. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Exact manufacturer optical throw row: 1.13-1.47. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. ViewSonic LSD401HD — official UK technical specifications	1.2	1.13
Maximum optical throw ratioDifferent Sources ViewSonic LS901HD Manufacturer specification · Exact manufacturer optical throw row: 1.2-2.04. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Exact manufacturer optical throw row: 1.13-1.47. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. ViewSonic LSD401HD — official UK technical specifications	2.04	1.47
LensDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	F=2.3-3.0, f=17.63-27.9mm	F=2.43-2.78, f=16.90-21.61mm
Projection OffsetDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	154% +/- 10%	132%+/-10%
Throw RatioDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1.2-2.04	1.13-1.47
Optical ZoomDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1.7X	1.3X
Digital Zoom Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	0.8x-2.0x	0.8x-2.0x
Image Size Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	30"-300"	30"-300"
Throw DistanceDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	0.80-13.55m (100”@2.66m)	0.75-9.76m (100"@2.50m)
Keystone Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	H:+/-30°, V:+/-30°	H:+/-30°, V:+/-30°
Lens Shift V. Range Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD No source recorded.	0%, -21%	Not provided
Wall/Ceiling Mount Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Optional Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Optional Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	PJ-WMK-007	PJ-WMK-007

Connections Sources ViewSonic LS901HD Manufacturer specification · Source-listed physical inputs, outputs and controls. Service USB, power outputs, connector versions and eARC claims retain their separate scopes; no full-bandwidth or compatibility guarantee inferred. Manufacturer section Input. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI. Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Audio-out (3.5mm). Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Speaker. Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type A (Power). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 (DB 9-pin male). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RJ45 (LAN control). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type A (Services). ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Source-listed physical inputs, outputs and controls. Service USB, power outputs, connector versions and eARC claims retain their separate scopes; no full-bandwidth or compatibility guarantee inferred. Manufacturer section Input. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI. Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Audio-out (3.5mm). Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Speaker. Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type A (Power). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 (DB 9-pin male). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RJ45 (LAN control). Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type A (Services). ViewSonic LSD401HD — official UK technical specifications	2 (HDMI 2.0, HDCP 2.2 HDMI 1.4, HDCP 1.4) (HDMI); 1 × Audio-out (3.5mm); Speaker (15W x2); USB Type A (Power) (1 (5V/1.5A)); 1 × RS232 (DB 9-pin male); 1 × RJ45 (LAN control); 1 (share with USB A Output) (USB Type A (Services))	2 (HDMI 2.0, HDCP 2.2) (HDMI); 1 × Audio-out (3.5mm); Speaker (15W); USB Type A (Power) (1 (5V/1.5A)); 1 × RS232 (DB 9-pin male); 1 × RJ45 (LAN control); 1 (share with USB A Output) (USB Type A (Services))
Input LagDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	16ms	16.7ms
HDTV Compatibility Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p	480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p
Horizontal Frequency Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	15K-135KHz	15K-135KHz
Vertical Scan RateDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	23-120Hz	24-120Hz
HDMI Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Input. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Input. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	2 (HDMI 2.0, HDCP 2.2 HDMI 1.4, HDCP 1.4)	2 (HDMI 2.0, HDCP 2.2)
Audio-out (3.5mm) Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1	1
USB Type A (Power) Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1 (5V/1.5A)	1 (5V/1.5A)
RS232 (DB 9-pin male) Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1	1
RJ45 (LAN control) Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1	1
USB Type A (Services) Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Control. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1 (share with USB A Output)	1 (share with USB A Output)

Speaker Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Output. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	15W x2	15W
Carton Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	Brown	Brown
OSD LanguageDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	English, French, German, Spanish, Italian, Portuguese, Dutch, Swedish, Finnish, Greek, Norwegian/Danish, Polish, Russian, Simplified_Chinese, Traditional_Chinese, Korean, Arabic, Japanese, Thai, Hungarian, Czechoslovak, Turkish, Farsi. Vietnamese, Indonesian, Romanian, Slovakian, total 27 languages	English, French, Spanish, Thai, Korean, German, Italian, Russian, Swedish, Dutch, Polish, Czech, T-Chinese, S-Chinese, Japanese, Turkish, Portuguese, Finnish, Indonesian, Arabic, Vietnamese, Hungarian, Norsk, total 23 languages
User Guide Language Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	English, S-Chinese, T-Chinese, Indonesian, Finish, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Arabic, Czech, Thai, Vietnamese, total 20 languages	English, S-Chinese, T-Chinese, Indonesian, Finish, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Arabic, Czech, Thai, Vietnamese, total 20 languages
Remote Control Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1	1
QSG Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	Yes	Yes
Warranty Card Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	Yes (CN Only)	Yes (CN Only)
Carry Bag Sources ViewSonic LS901HD No source recorded. ViewSonic LSD401HD Manufacturer specification · Manufacturer section Optional Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	Not provided	PJ-CASE-008

DimensionsDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxDxH) with Adjustment Foot. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxDxH) with Adjustment Foot. ViewSonic LSD401HD — official UK technical specifications	337x280x132mm (13.3x11x5.2 in)	286x216x129mm (11.3x8.5x5.1 in)
WeightDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer Net Weight: 4.77kg (10.52 lbs). Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer Net Weight: 3kg (6.61 lbs). Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted. ViewSonic LSD401HD — official UK technical specifications	4770 g	3000 g
Net WeightDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	4.77kg (10.52 lbs)	3kg (6.61 lbs)
Gross WeightDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	6.7kg (14.77 lbs)	4.5kg (9.92 lbs)
Dimensions (WxDxH) with Adjustment FootDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	337x280x132mm (13.3x11x5.2 in)	286x216x129mm (11.3x8.5x5.1 in)
Packing DimensionsDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	496x387x195mm (19.5x15.2x7.7 in)	400x280x155mm (15.7x11x6.1 in)

Audible Noise (Normal)Different Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	31dB	32dB
Audible Noise (Eco)Different Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Specification. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	25dB	27dB
Power Supply VoltageDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	100-240V+/- 10%, 50/60Hz (AC in)	Power adaptor: Input: 100~240V Output: 19.5VDC / 9.23A
Power ConsumptionDifferent Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	Normal: 245W Standby: <0.5W	Normal: 143W Standby: <0.5W
Operating Temperature Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Others. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	0~40℃	0~40℃
Power Cord Sources ViewSonic LS901HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD Manufacturer specification · Manufacturer section Standard Accessory. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. ViewSonic LSD401HD — official UK technical specifications	1	1

Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
Physical imager pixel grid Sources ViewSonic LS901HD A physical imager pixel grid is not separately established by these supplied sources. The declared display/projected resolution and chip diagonal do not fill this field. · Manufacturer specification ViewSonic LS901HD — official UK technical specifications ViewSonic LSD401HD A physical imager pixel grid is not separately established by these supplied sources. The declared display/projected resolution and chip diagonal do not fill this field. · Manufacturer specification ViewSonic LSD401HD — official UK technical specifications	Not listed by the manufacturer	Not listed by the manufacturer

First product manufacturer source Second product manufacturer source

FIND YOUR CONTENDERS

More products

Closest projectors to this pair by shared key specifications. Not a popularity ranking.

See all 218 projectors

ViewSonic LSD400HD-ST

Minimum optical throw ratio: 0.5 ×
Net projector weight: 3.1 kg
Projected resolution: 1920x1080

Prices & product profile

ViewSonic LS630HD

Minimum optical throw ratio: 1.13 ×
Net projector weight: 3.1 kg
Projected resolution: 1920x1080

Prices & product profile

ViewSonic LSD400HD

Minimum optical throw ratio: 1.48 ×
Net projector weight: 3 kg
Projected resolution: 1920x1080

Prices & product profile

ViewSonic LSD500HD

Minimum optical throw ratio: 1.13 ×
Net projector weight: 2.9 kg
Projected resolution: 1920x1080

Prices & product profile

Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.