BenQ · 3,000–4,999 lumens · Full
BenQ LH835ST
4,000lumens
1920×1080native
0.69–0.83throw ratio
3.3 kgweight
The BenQ LH835ST is a 0.65" DLP x 1 projector rated at 4,000 lumens with a native resolution of 1920×1080. It uses a laser phosphor light source rated for 20,000 hours / 30,000 hours (Eco). Its lens has a throw ratio of 0.69–0.83:1. Released February 2025.
Throw distance table
Distance from lens to surface for each image width (16:9 (HD)). Calculated as throw ratio × width; check the manufacturer's lens calculator before installation.
| Image width | Height | Standard lens 0.69–0.83:1 |
|---|---|---|
| 2 m (6.6 ft) | 1.12 m | 1.4–1.7 m |
| 3 m (9.8 ft) | 1.69 m | 2.1–2.5 m |
| 4 m (13.1 ft) | 2.25 m | 2.8–3.3 m |
| 5 m (16.4 ft) | 2.81 m | 3.4–4.1 m |
| 6 m (19.7 ft) | 3.38 m | 4.1–5.0 m |
| 8 m (26.2 ft) | 4.5 m | 5.5–6.6 m |
| 10 m (32.8 ft) | 5.62 m | 6.9–8.3 m |
| 12 m (39.4 ft) | 6.75 m | 8.3–10.0 m |
| 15 m (49.2 ft) | 8.44 m | 10.3–12.4 m |
| 20 m (65.6 ft) | 11.25 m | 13.8–16.6 m |
| 25 m (82.0 ft) | 14.06 m | 17.2–20.8 m |
| 30 m (98.4 ft) | 16.88 m | 20.7–24.9 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) | 356 m² | 25.1 × 14.1 m |
| Quiet street at night (5 lux) | 71 m² | 11.2 × 6.3 m |
| Lit city square (15 lux) | 24 m² | 6.5 × 3.7 m |
| Bright urban area (30 lux) | 12 m² | 4.6 × 2.6 m |
| Indoor, lights dimmed (50 lux) | 7 m² | 3.6 × 2.0 m |
Full specifications
| Aspect Ratio | 16:9 (HD) |
|---|---|
| Audible Noise | 32 dB / 29 dB (Eco) |
| Best Used For | K-12 Education Corporate/Business Golf Simulator |
| Brightness | 4,000 Lumens (ANSI) 1 |
| Color Processing | 10-bit |
| Connection Panel | Audio Out: Mini Jack HDMI x 2 RS232: DB-9pin USB: A |
| Data Modes | MAX 3840x2160 |
| Digital Keystone | Horizontal & Vertical |
| Display Type | 0.65" DLP x 1 |
| Features | Short-Throw 24/7 Operation Geometric Correction Auto Focus |
| Image Size | 59.88" - 119.92" |
| Included Lens | 1.2x Powered zoom , Powered focus |
| Internal Speakers | 10.0 Watts Mono |
| Lens Shift | No |
| Light Source | Laser Phosphor |
| Light Source Life | 20,000 hours / 30,000 hours (Eco) |
| MSRP | n/a |
| Power | 320 Watts 100V - 240V |
| Projector Size | 4.43" x 11.95" x 9.23" (HxWxD) |
| Released | February 2025 |
| Resolution | 1920x1080 |
| Status | Shipping |
| Throw Distance | 3.6' - 6.0' Calculate Throw Distance |
| Throw Ratio | 0.69:1 - 0.83:1 (D:W) |
| Video Modes | 720p, 1080i, 1080p/60, 576i, 576p, 480p, 480i |
| Weight | 7.3 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 AH700ST | 4,000 | 1920×1080 | Laser Phosphor | 0.69–0.83:1 | $2,299 |
| BenQ AH500ST | 4,000 | 1920×1080 | Laser Phosphor | 0.5:1 | $1,999 |
| BenQ EH700 | 4,000 | 1920×1080 | Laser Phosphor | 1.15–1.5:1 | $2,099 |
| BenQ LH650 | 4,000 | 1920×1080 | Laser Phosphor | 1.15–1.5:1 | $1,449 |
| BenQ LH730 | 4,000 | 1920×1080 | LED | 1.3–1.56:1 | $1,795 |
| BenQ LH830ST | 4,000 | 1920×1080 | Laser Phosphor | 0.5:1 | $1,999 |
| BenQ LH850ST | 4,000 | 1920×1080 | Laser Phosphor | 0.5:1 | $1,999 |
| BenQ MH733 | 4,000 | 1920×1080 | 240W Metal Halide bulb | 1.15–1.5:1 | $1,000 |