























£2,358.48*
- Light Brightness 4,000 Lumen
- Resolution 1920 x 1080 Full HD
- Aspect Ratio 16:9
- Operating noise 35 dB

Product information
BenQ LH850ST – high-precision laser projector for professional applications
The BenQ LH850ST is a high-performance 1080p laser installation projector that impresses with innovative technologies, high brightness and flexible installation options. Thanks to short-throw technology, it can create stunning images even in confined spaces, while its advanced colour calibration and high colour precision ensure realistic displays.

Technical data at a glance:
- Resolution: Full HD 1080p
- Brightness: 4000 ANSI Lumen for clear images even in daylight
- Contrast ratio: 3,000,000:1 for deep blacks and brilliant details
- Short throw ratio: 0.5 for large images from a short distance
- Colour calibration: factory white balance for easy multi-projector setups
- Dust protection: IP5X-rated sealed motor for durability
- Installation: 2D keystone correction , digital reduction & shift
- DLP technology: Long-lasting, vivid colours with no colour decay
- Wireless projection: Optional Wi-Fi dongle for BYOD applications
- Remote management: compatibility with DMS, AMX & PJ-Link for centralised control
Vivid image quality with simulation mode
The BenQ LH850ST has been specially developed for scenarios that require the highest colour accuracy and visual precision. The unique simulation mode improves greens, yellows and reds for a more realistic display. Thanks to the dual colour wheel system with an RGBY spectrum, the projector delivers outstanding chromatic performance for true-to-life visuals.

Optimal projection in any room
With a short throw ratio of 0.5, the LH850ST projects razor-sharp images of over 100 inches in size from just 1.07 metres away. This prevents annoying shadows or obstacles in the image and ensures an immersive viewing experience – ideal for interactive simulations, indoor entertainment and commercial presentations.
Robust design for demanding environments
The durable construction of the LH850ST guarantees reliable 24/7 operation without the need for maintenance. The IP5X Dust Guard™ technology effectively protects the optical components from dust and ensures long-lasting performance even in challenging environments. The sealed laser module prevents dust from entering and significantly reduces maintenance costs.
Precise image adjustment and easy installation

For flexible installation, the LH850ST offers a wide range of adjustment options:
- 2D keystone correction for optimal image alignment
- Digital panning and zooming for precise image positioning
- Corner Fit function for customisation of each image corner
- Fast remote autofocus for instantly sharp images
Seamless multi-projector setups
The LH850ST enables consistent blending of multiple projectors by using factory white balance settings to minimise differences between projection images. This creates seamless, immersive displays without the hassle of manual calibration.
Wireless connectivity and centralised control
For modern BYOD environments, the projector offers optional wireless projection via a Wi-Fi dongle. This allows up to four participants to present content simultaneously via a shared screen. In addition, the DMS (Device Management System) enables centralised control of multiple projectors, making it easier for IT departments to manage multiple locations efficiently.
Highest image quality with maximum flexibility
With the BenQ LH850ST, you get a high-precision laser projector that impresses with brilliant image quality, flexible installation options and maintenance-free durability. Whether for interactive simulations, professional presentations or immersive experiences – this projector offers a future-proof solution for a wide range of requirements.
Technical data
Name | BenQ LH850ST Projector, 1920 x 1080 Full HD, 4000 Lumen |
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Article number | 1000034402 |
GTIN/EAN | 4718755094835 |
Manufacturer SKU | 9H.JT477.23E |
Lamp life (ECO) | 30,000 Hour |
Lens included | Yes |
Model name | LH850ST |
Projection Distance | Short Throw |
Brand | BenQ |
Product Type | Projector |
Product Series | BenQ L Series |
Application | Business projector , Installation projectors , Short throw projectors |
Projector Type | DLP |
Projector lamp type | Laser |
ANSI Lumen | 4,000 ANSI Lumen |
Resolution | 1920 x 1080 Full HD |
Aspect Ratio | 16:9 |
Contrast Ratio | 3,000,000 :1 |
Operating noise | 35 dB |
Operating noise - ECO | 32 dB |
Lamp life | 20,000 Hour |
run-time | 24/7 |
Minimum Projection Ratio | 0.499 |
Maximum Projection Ratio | 0.499 |
Horizontal Keystone | 30% |
Vertical Keystone | 30% |
Inputs | 1x Ethernet , 1x RS232 , 1x USB-A , 2x HDMI |
Outputs | 1x 3,5mm Jack |
wireless technology | WLAN optional |
Features | Integrated speaker |
Product width | 29.6 cm |
Product height | 12 cm |
Product depth | 23.2 cm |
Weight | 5.1 kg |
Colour | Black |
Delivery contents | Power cable , Remote control |
Condition | New |
Warranty | 36 Month |
Warranty type | Bringin service Service and support information |
Product safety
Person responsible for the EU |
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BenQ Deutschland GmbH |
Essener Str. 5 |
46047 Oberhausen |
Germany |
support@benq.eu |