BenQ · 3,000–4,999 lumens · WXGA
BenQ LW855UST
3,500lumens
1280×800native
0.35–0.35throw ratio
6.5 kgweight
The BenQ LW855UST is a DLP x 1 projector rated at 3,500 lumens with a native resolution of 1280×800. It uses a laser phosphor light source rated for 20,000 hours / 38,000 hours (Eco). Its lens has a throw ratio of 0.35:1. Released September 2023.
Throw distance table
Distance from lens to surface for each image width (16:10 (WXGA)). Calculated as throw ratio × width; check the manufacturer's lens calculator before installation.
| Image width | Height | Standard lens 0.35:1 |
|---|---|---|
| 2 m (6.6 ft) | 1.25 m | 0.7 m |
| 3 m (9.8 ft) | 1.88 m | 1.0 m |
| 4 m (13.1 ft) | 2.5 m | 1.4 m |
| 5 m (16.4 ft) | 3.12 m | 1.8 m |
| 6 m (19.7 ft) | 3.75 m | 2.1 m |
| 8 m (26.2 ft) | 5.0 m | 2.8 m |
| 10 m (32.8 ft) | 6.25 m | 3.5 m |
| 12 m (39.4 ft) | 7.5 m | 4.2 m |
| 15 m (49.2 ft) | 9.38 m | 5.2 m |
| 20 m (65.6 ft) | 12.5 m | 7.0 m |
| 25 m (82.0 ft) | 15.62 m | 8.8 m |
| 30 m (98.4 ft) | 18.75 m | 10.5 m |
Open in the throw-distance calculator →
Maximum image size for projection mapping
Largest image that keeps a 10:1 contrast against ambient light on a light, matte surface (80% optical efficiency). See how this is calculated.
| Ambient light | Max area | Max width × height |
|---|---|---|
| Dark rural site (1 lux) | 311 m² | 22.3 × 13.9 m |
| Quiet street at night (5 lux) | 62 m² | 10.0 × 6.2 m |
| Lit city square (15 lux) | 21 m² | 5.8 × 3.6 m |
| Bright urban area (30 lux) | 10 m² | 4.1 × 2.5 m |
| Indoor, lights dimmed (50 lux) | 6 m² | 3.2 × 2.0 m |
Full specifications
| 3D Modes | Full HD 3D |
|---|---|
| Aspect Ratio | 16:10 (WXGA) |
| Audible Noise | 34 dB / 32 dB (Eco) |
| Best Used For | K-12 Education Corporate/Business |
| Brightness | 3,500 Lumens (ANSI) 1 |
| Color Processing | 10-bit |
| Connection Panel | Audio In: Mini Jack Audio Out: Mini Jack HDMI 2.0 (HDCP 2.2) x 2 Network: RJ-45 RS232: DB-9pin USB: A x 2 VGA In: Dsub-15pin VGA Out: Dsub-15pin |
| Data Modes | MAX 3840x2160 |
| Digital Keystone | Horizontal & Vertical |
| Digital Zoom | Yes |
| Display Type | DLP x 1 |
| Features | Short-Throw Short-Throw Wall Mount Full HD 3D Geometric Correction HDR Crestron RoomView™ |
| Image Size | 80.00" - 100.00" |
| Included Lens | Fixed focal length , manual focus |
| Internal Speakers | 10.0 Watts × 2 |
| Lens Shift | Vertical +/-2% |
| Light Source | Laser Phosphor |
| Light Source Life | 20,000 hours / 38,000 hours (Eco) |
| MSRP | n/a |
| Power | 170 Watts 100V - 240V |
| Projector Placement | For a " diagonal screen, place the projector lens 1'-5" from the screen. |
| Projector Size | 8.19" x 12.49" x 14.82" (HxWxD) |
| Released | September 2023 |
| Resolution | 1280x800 |
| Status | Shipping |
| Street Price | $2,199 (USD) |
| Throw Distance | 0.9' - 1.4' Calculate Throw Distance |
| Throw Ratio | 0.35:1 (D:W) |
| Video Modes | 720p, 1080i, 1080p/60 |
| Warranty | 3 Years |
| Weight | 14.3 lbs |
Specifications compiled from ProjectorCentral and manufacturer data. Prices change — verify with dealers.
Similar projectors
| Model | Lumens | Resolution | Light source | Throw ratio | Street price |
|---|---|---|---|---|---|
| BenQ MW826STH | 3,500 | 1280×800 | Metal Halide bulb | 0.61:1 | $915 |
| Vivitek DW771USTie | 3,500 | 1280×800 | 240W Metal Halide bulb | 0.35:1 | $2,250 |
| Maxell MP-JW3501 | 3,500 | 1280×800 | Laser Phosphor | 1.5–1.8:1 | $1,749 |
| Maxell MP-JW3511 | 3,500 | 1280×800 | Laser Phosphor | 1.3–1.8:1 | $1,799 |
| Casio XJ-F100W | 3,500 | 1280×800 | Laser/LED Hybrid | 1.32–1.93:1 | $899 |
| Casio XJ-F101W | 3,500 | 1280×800 | Laser/LED Hybrid | 1.35–1.96:1 | $899 |
| Casio XJ-F210WN | 3,500 | 1280×800 | Laser/LED Hybrid | 1.32–1.93:1 | $1,049 |
| Casio XJ-F211WN | 3,500 | 1280×800 | Laser/LED Hybrid | 1.35–1.96:1 | $1,049 |