BenQ LH850ST
Full HD 3D Ready DLP Laser Projector 4000 Lumens - HDR10/HLG - Short throw - IP5X - RJ45 - 1 x 10 Watts
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A laser projector with Full HD resolution and short-throw lens
Designed for professional environments, simulators or immersive installations, the BenQ LH850ST stands out for its high brightness and visual accuracy. This Full HD laser projector delivers a high brightness of 4 000 ANSI lumens combined with a dynamic contrast of 3 000 000:1, ensuring detailed, impactful images even in bright environments. Thanks to its short-throw lens (0,499:1 ratio), it projects a large image from a short distance, ideal for compact rooms or multi-screen installations. Its DLP technology combined with a dual RGBY color wheel system improves color reproduction and visual fidelity, while the optimized Simulation mode boosts color intensity for a more realistic and immersive rendering. Equipped with a long-life laser light source rated for up to 20 000 hours (up to 38 000 hours in eco mode), the LH850ST combines visual performance, reliability and reduced maintenance for intensive use.

A high-performance and practical projector
The BenQ LH850ST focuses on visual accuracy to faithfully reproduce dynamic content. Its dedicated Simulation mode enhances certain shades such as greens, yellows and reds to produce more realistic and immersive images, particularly useful in training or simulation environments. Award-winning DLP technology also ensures stable, long-lasting colors over time, while Full HD 1080p resolution and 4 000 lumens brightness deliver a sharp, bright image, even in the presence of ambient light.
Short-throw lens and 24/7 operation
Designed for demanding installations, the LH850ST offers great deployment flexibility. Its short-throw lens makes it easy to project large images in confined spaces, while geometric adjustment and keystone correction functions ensure a perfectly aligned image. The projector also features a hermetically sealed optical engine certified IP5X, protecting internal components from dust for extended service life. Designed for intensive use, it can operate 24/7 while maintaining consistent image quality and minimal maintenance.


Specifications:
- DLP projection technology and Laser light source
- Brightness: 4 000 ANSI lumens
- Native resolution: Full HD 1920 x 1080 - Compatible resolutions: VGA (640 x 480) to 4K UHD (3840 x 2160)
- Native aspect ratio: 16:9
- Dynamic contrast: 3 000 000:1
- Color gamut coverage: 83 % Rec.709
- Throw ratio: 0,499:1 (short throw)
- Image size: approx. 76 cm to 306 cm
- Zoom: 1.2x
- Keystone correction: vertical ±30° / horizontal ±30°
- Picture modes: 3D, Cinema, Game, HDR10, HLG, Simulator, sRGB, User
- Refresh rate: up to 120 Hz
- Input lag: 16,7 ms (1080p/60 Hz) / 8,3 ms (1080p/120 Hz)
- Light source – lifespan: 20 000 h (standard) / 38 000 h (eco)
- Built-in speaker: 10 W
- Noise level: 35 dB (32 dB in eco mode)
- Connectivity: 2 × HDMI 2.0 (HDCP 2.2) / 1 × LAN RJ-45 / 1 × USB Type-A / 1 × USB mini-B (service) / 1 × RS-232
- 3.5 mm jack audio output
- "Dust Guard" dust certification: IP5X (sealed optical engine)
Select your criteria
General information |
Product name |
BenQ LH850ST |
Brand |
BenQ | |
Model |
9H.JT477.23E | |
Main characteristics |
Format |
Office |
Light source |
Laser | |
Technology |
DLP | |
Resolution |
1920 x 1080 pixels | |
4K UHD resolution(s) |
No | |
HDR (High Dynamique Range) |
Yes | |
Display format(s) |
16:9 | |
Brightness |
4000 Lumens | |
Contrast |
3000000 /1 | |
Gaming |
Gamer |
No |
Lens |
Lens Shift |
No |
Focal type |
Short throw | |
Min throw ratio |
0.499 | |
Autofocus |
No | |
Video Signals |
Supported video resolution(s) |
720p |
| 576p | ||
| 576i | ||
| 480p | ||
| 480i | ||
| 1080p | ||
| 1080i | ||
Supported computer science resolution(s) |
640 x 480 pixels | |
| 1280 x 800 pixels | ||
| 1680 x 1050 pixels | ||
| 1920 x 1200 pixels | ||
| 800 x 600 pixels | ||
| 1024 x 768 pixels | ||
| 1280 x 1024 pixels | ||
3D compatible |
Yes | |
Min vertical frequency |
23 Hz | |
Max vertical frequency |
120 Hz | |
Lamp |
Lamp type |
Laser |
Lamp lifespan |
20000 Hour(s) | |
Sound level |
Min sound level |
24 dB |
Max sound level |
30 dB | |
Equipment |
With display |
No |
Remote control |
Yes | |
Sound power |
1 X 10 W | |
Network |
No | |
Smart |
No | |
Android TV |
No | |
Interactive model |
No | |
Connectivity |
Video inputs |
1 X HDMI Female |
Audio outputs |
1 X Line OUT (3.5mm Jack Female) | |
Additional connector(s) |
1 X USB Type B Female | |
| 3 X USB Type A Female | ||
| 1 X Serial (RS-232) | ||
Physical characteristics |
Width |
296 mm |
Height |
120 mm | |
Depth |
232 mm | |
Weight |
2.5 kg | |
Power supply |
Consumption |
320 W |
Standby consumption |
0.5 W | |
Warranties |
Commercial warranty |
Seller 2 years
|
Legal warranty |
See terms & conditions
|
|
Safety Information |
Responsible person |
BenQ Europe B.V. |
Postal address |
Meerenakkerweg 1-17, 5652 AR Eindhoven, The Netherlands | |
Electronic Address |
Click here
|
See all BenQ products
Product referenced on 12 Mar 2026
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