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BenQ LH850ST

Full HD 3D Ready DLP Laser Projector 4000 Lumens - HDR10/HLG - Short throw - IP5X - RJ45 - 1 x 10 Watts

2 399€95
Recycling charge of 0€71
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Overview

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)
Specifications
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

Legal warranty

Safety Information

Responsible person

BenQ Europe B.V.

Postal address

Meerenakkerweg 1-17, 5652 AR Eindhoven, The Netherlands

Electronic Address

Product referenced on 12 Mar 2026

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