LH550 · exact LH550 UK manufacturer catalogue configuration
BenQ LH550 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 specificationsTH685P · exact TH685P UK manufacturer catalogue configuration
BenQ TH685P 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 specificationsSearch 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.
Differences first. Select a topic for its graphic, sources and conditions.
Check the exact configuration and source conditions for your use.
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.
29 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
Check the exact configuration and source conditions for your use.
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 Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness (ANSI lumens).
BenQ LH550 — official UK technical specificationsManufacturer 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 Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness (ANSI lumens).
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
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 I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI in. Manufacturer section I/O Interface. 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. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 in (DB-9pin). Manufacturer section Audio. 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 Mini Jack).
BenQ LH550 — official UK technical specificationsManufacturer 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 I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI in. Manufacturer section I/O Interface. 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. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 in (DB-9pin). Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Audio in (3.5mm Mini Jack). Manufacturer section Audio. 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 Mini Jack).
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxHxD) (mm).
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxHxD) (mm).
BenQ TH685P — official UK technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification · Manufacturer Net Weight (kg): 2.6. Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer Net Weight (kg): 2.79. Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted.
BenQ TH685P — official UK technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification · Actual source field Brightness (ANSI lumens): 2600. Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion.
BenQ LH550 — official UK technical specificationsManufacturer specification · Actual source field Brightness (ANSI lumens): 3500. Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsManufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.
Manufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsManufacturer specification · Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Exact manufacturer optical throw row: 1.49-1.64. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.
BenQ LH550 — official UK technical specificationsManufacturer specification · Exact manufacturer optical throw row: 1.127~1.46. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Exact manufacturer optical throw row: 1.49-1.64. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.
BenQ LH550 — official UK technical specificationsManufacturer specification · Exact manufacturer optical throw row: 1.127~1.46. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.
BenQ TH685P — official UK technical specificationsCheck the exact configuration and source conditions for your use.
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
BenQ LH550 — official UK technical specificationsA 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
BenQ TH685P — official UK technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ LH550 — official UK technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.
BenQ TH685P — official UK technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
17 shared fields have the same recorded value.
| Specification | BenQ LH550 | BenQ TH685P |
|---|---|---|
Projected resolution SourcesBenQ LH550 Manufacturer specification · Source label 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. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Source label 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. BenQ TH685P — official UK technical specifications | 1080P (1920x1080) | 1080P (1920x1080) |
Projection technology Sources | DLP | DLP |
Resolution SourcesBenQ LH550 Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 1080P (1920x1080) | 1080P (1920x1080) |
Native Aspect Ratio SourcesBenQ LH550 Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 16:9 | 16:9 |
Contrast Ratio (FOFO)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 15,000:1 | 10,000:1 |
Display Color SourcesBenQ LH550 Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 30-bit (1.07 billion colors) | 30-bit (1.07 billion colors) |
Rec. 709 Coverage SourcesBenQ LH550 Manufacturer specification · Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 95% | 95% |
Picture ModesDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 3D, Bright, Presentation, Spreadsheet, sRGB, User 1, User 2, Video | 3D, Bright, Cinema, Game, HDR, HLG, Living Room, Sports, User 1, User 2 |
Resolution SupportDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | VGA(640 x 480) to WUXGA_RB(1920 x 1200) *RB=Reduced blanking | VGA (640 x 480) to 4K UHD (3840 x 2160) |
3D Glasses SourcesBenQ LH550 Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P No source recorded. | DGD5, (Optional) | Not provided |
Projection System SourcesBenQ LH550 Manufacturer specification · Manufacturer section Projection System. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Projection System. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | DLP | DLP |
Light sourceDifferent Sources | LED | Lamp |
BrightnessDifferent SourcesBenQ LH550 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 Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness (ANSI lumens). BenQ LH550 — official UK technical specificationsBenQ TH685P 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 Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness (ANSI lumens). BenQ TH685P — official UK technical specifications | 2600 ANSI lumens | 3500 ANSI lumens |
Published ANSI brightnessDifferent SourcesBenQ LH550 Manufacturer specification · Actual source field Brightness (ANSI lumens): 2600. Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Actual source field Brightness (ANSI lumens): 3500. Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion. BenQ TH685P — official UK technical specifications | 2600 ANSI lm | 3500 ANSI lm |
Brightness (ANSI lumens)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 2600 | 3500 |
Light SourceDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | LED | Lamp |
Light Source LifeDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | a. Normal 20000 hrs, b. ECO 30000 hrs | a. Normal 4000 hrs, c. SmartEco 8000 hrs, d. LampSave 15000 hrs, b. ECO 10000 hrs |
Throw ratioDifferent Sources | 1.49-1.64 | 1.127~1.46 |
Minimum optical throw ratioDifferent SourcesBenQ LH550 Manufacturer specification · Exact manufacturer optical throw row: 1.49-1.64. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Exact manufacturer optical throw row: 1.127~1.46. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. BenQ TH685P — official UK technical specifications | 1.49 | 1.127 |
Maximum optical throw ratioDifferent SourcesBenQ LH550 Manufacturer specification · Exact manufacturer optical throw row: 1.49-1.64. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Exact manufacturer optical throw row: 1.127~1.46. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate. BenQ TH685P — official UK technical specifications | 1.64 | 1.46 |
Throw RatioDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 1.49-1.64 | 1.127~1.46 |
Zoom RatioDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 1.1x | 1.3x |
LensDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | F = 2.4 ~ 2.5 f = 22 ~ 24.1 mm | F/#=1.94~2.07;f=11.9~15.5 mm |
Projection Offset (Full-Height)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 100% | 105% |
Keystone AdjustmentDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 2D, (Auto) Vertical ± 30 degrees; Horizontal ± 30 degrees | 1D, (Auto) Vertical ± 40 degrees |
Universal Ceiling Mount SourcesBenQ LH550 Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P No source recorded. | (Optional) | Not provided |
ConnectionsDifferent SourcesBenQ LH550 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 I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI in. Manufacturer section I/O Interface. 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. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 in (DB-9pin). Manufacturer section Audio. 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 Mini Jack). BenQ LH550 — official UK technical specificationsBenQ TH685P 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 I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI in. Manufacturer section I/O Interface. 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. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 in (DB-9pin). Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Audio in (3.5mm Mini Jack). Manufacturer section Audio. 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 Mini Jack). BenQ TH685P — official UK technical specifications | HDMI-1 (1.4a/HDCP1.4), HDMI-2 (1.4a/HDCP1.4) (HDMI in); (x1), USB Type A-1 (2.0/Power Supply1.5A) (USB Type A); 1 × RS232 in (DB-9pin); 1 × Audio out (3.5mm Mini Jack) | (x2), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2) (HDMI in); (x1), USB Type A-1 (2.0/Power Supply1.5A) (USB Type A); 1 × RS232 in (DB-9pin); 1 × Audio in (3.5mm Mini Jack); 1 × Audio out (3.5mm Mini Jack) |
Input LagDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 33.4 ms (1080p@60Hz) | 16.7 ms (1080P 60Hz), 33.4 ms (4K 60Hz) *downscaling to 1080p, 8.3 ms (1080P 120Hz) |
Horizontal Frequency SourcesBenQ LH550 Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 15K~102KHz | 15K~102KHz |
Vertical Scan Rate SourcesBenQ LH550 Manufacturer specification · Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P No source recorded. | 23~120Hz | Not provided |
HDMI inDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | HDMI-1 (1.4a/HDCP1.4), HDMI-2 (1.4a/HDCP1.4) | (x2), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2) |
USB Type A SourcesBenQ LH550 Manufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | (x1), USB Type A-1 (2.0/Power Supply1.5A) | (x1), USB Type A-1 (2.0/Power Supply1.5A) |
RS232 in (DB-9pin) SourcesBenQ LH550 Manufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | (x1) | (x1) |
Audio out (3.5mm Mini Jack) SourcesBenQ LH550 Manufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | (x1) | (x1) |
Audio in (3.5mm Mini Jack) SourcesBenQ LH550 No source recorded. BenQ TH685P Manufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | Not provided | (x1) |
SpeakerDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | (x1), 10W | (x1), 5W Chamber |
Carry Bag SourcesBenQ LH550 Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P No source recorded. | (Optional) | Not provided |
Power Cord (by region) SourcesBenQ LH550 Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | x1 (1.8M) | x1 (1.8M) |
Quick Start Guide SourcesBenQ LH550 Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | (x1) 21L | (x1) 21L |
Warranty Card (by region) SourcesBenQ LH550 Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | Yes | Yes |
DimensionsDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxHxD) (mm). BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxHxD) (mm). BenQ TH685P — official UK technical specifications | 303.5*107.4.*220.7 mm | 312 x 110 x 225 mm |
WeightDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer Net Weight (kg): 2.6. Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer Net Weight (kg): 2.79. Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted. BenQ TH685P — official UK technical specifications | 2600 g | 2790 g |
Dimensions (WxHxD) (mm)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 303.5*107.4.*220.7 | 312 x 110 x 225 |
Net Weight (kg)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 2.6 | 2.79 |
Net Weight (lb)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 5.7 | 6.15 |
Dimensions (WxHXD) (inch) SourcesBenQ LH550 No source recorded. BenQ TH685P Manufacturer specification · Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | Not provided | 12.2 x 4.3 x 8.8 |
Operating Temperature SourcesBenQ LH550 Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 0~40℃ | 0~40℃ |
Power Supply SourcesBenQ LH550 Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | AC 100 to 240 V, 50/60 Hz | AC 100 to 240 V, 50/60 Hz |
Typical Power Consumption (110V)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 215W | 297W/110V |
Stand-by Power Consumption SourcesBenQ LH550 Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | <0.5W | <0.5W |
Acoustic Noise (Typ./Eco.)(dB)Different SourcesBenQ LH550 Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | 34/28 dB | 35/29 dB |
Remote Control w/ BatteryDifferent SourcesBenQ LH550 Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ LH550 — official UK technical specificationsBenQ TH685P Manufacturer specification · Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. BenQ TH685P — official UK technical specifications | RCX016 | RCV013 |
Physical imager pixel grid SourcesBenQ LH550 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 BenQ LH550 — official UK technical specificationsBenQ TH685P 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 BenQ TH685P — official UK technical specifications | Not listed by the manufacturer | Not listed by the manufacturer |
|---|
Closest projectors to this pair by shared key specifications. Not a popularity ranking.
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.
