BenQ LH850ST Projector
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Effortless Blending for an Interactive, Immersive Experience
The BenQ LH850ST laser projector is a simulation projector featuring user-friendly colour calibration technology to effectively reproduce dynamic images for a sleek, immersive experience during multi-projector scenarios.
Simulation Mode for Lifelike, Immersive Visuals
Equipped with 4,000 ANSI lumens of high brightness and a dedicated Simulation Mode, LH850ST elevates colour intensity and visual clarity. Its Simulation Mode specifically enhances greens, yellows, and reds, bringing your content to life with vivid realism.
Dual Colour Wheels Reproduce Colours Accurately
The LH850ST laser projector utilises DLP technology with a dual colour wheel system. The two synchronised colour wheels feature an additional yellow segment, producing a precise RGBY spectrum for optimal chromatic performance.
DLP Technology for Long Lasting Vibrant Colour
BenQ’s LH850ST laser projector adopts Academy Award-Winning DLP projection technology, providing stable and long-lasting accurate colours. With a durable DMD chip that lasts over 200,000 hours, it ensures vivid colours and true whites without yellowing over time. Designed for 24/7 operation, it offers instant power-on for meetings, eliminating the need for a warm-up period, while also saving time and money on lamp replacements.
Vivid Clarity in Bright Ambient Environments
LH850ST’s 4000 ANSI Lumens high brightness and 1080p high resolution produce high quality images under bright ambient lighting. And its 3,000,000:1 native high contrast reproduces true blacks, vivid colours, and exquisite details.
IP5X Dust Guard™ Dustproofing for Severe Conditions
LH850ST utilises sealed laser modules and enclosed light engines to protect the DMD chip, colour wheel sensor, laser package, and other optical components. This lock-and-key design hermetically seals the engine from dust to prolong projector lifespan. The technology has also passed the dust chamber test standard for the international dustproof rating of IP5X.
Optimal Installation Flexibility
LH850ST has high installation flexibility and T/R 0.5 short throw design that are best for small-room multi-projector display.
White Balance Calibration for Seamless Edge Blending
BenQ LH850ST with exclusive white balance adjustments reduce variables between images projected from different projectors that the most people cannot see any difference. This allows for seamless and accurate picture quality without disruptive discrepancies, saving the installation staff from repetitious fine-tuning.
Short-Throw Design Shatters Space Constraints
A LH850ST short-throw laser projector is best for indoor interactive entertainment, training simulation, and commercial space exhibitions. It’s easy to project images larger than 100” within 1.07m and short-distance projection prevents people or objects from getting in the way and casting a shadow on the projected image for the most immersive viewing experience possible.
Digital Shrink and Shift for Accurate Image Adjustment
After the projector is installed, LH850ST allows installation staff to adjust the projected image by reducing and moving it by 0.5% to where you want accurately.
Corner Fit for Precise Image Adjustment
LH850ST’s digital trapezoid correction function allows users to correct images easily. Use the remote control to correct the images in a few clicks. Furthermore, the Corner Fit feature also allows users to fine-tune to the final image.
Seamless Alignment and Sharp Focus From Any Angle
Achieve flawless visuals and crisp images with the push of a button. The Large 2D Keystone correction ensures quick alignment, while Quick Focus delivers clear and precise visual from any projection angle.
Wireless Casting from Smart Devices
To meet the growing BYOD trend, BenQ’s optional Wi-Fi dongle lets meeting participants project Full HD multimedia content wirelessly from any mobile device. This wireless technology supports up to four presenters via a four-way split screen, enhancing collaboration and creating an immersive experience in dynamic settings for all participants.
An Enhanced Security Bar for Secure Installation
With a 40% wider security bar, the LH850ST offers improved stability and ease of installation, allowing users to securely set up the projector with confidence.
Multiple Control System Compatibility
BenQ LH850ST laser projectors are compatible with AMX and PJ Link control systems for convenient system integration with various third-party components for centralised management of multiple projectors at less cost.
Device Management Solution (DMS)
DMS is the solution that allows multiple projectors distributed in different rooms, different floors, and even different buildings to be managed by the IT staff via this centralised management system with remotely effective control and monitoring.
| Item | 9H.JT477.23E |
|---|---|
| Weight (kg) | 5.100000 |
| EAN | 4718755094835 |
| Technology | DLP |
| HDMI Inputs | 2 |
| Input Lag (ms) | 8.3 |
| Contrast | 3,000,000 |
| Lumens | 4000 |
| Throw Ratio | 0.499 |
| Resolution (Native) | Full HD 1920x1080 |
| Light Source | Laser |
| Light Source Life (Est.) | 38000 |
Delivery Rates to mainland UK (excluding large and/or heavy items)
Delivery is to ground floor/kerbside only, if you have special delivery instructions you must contact us to ensure that we can have the best chance of success in delivering the item. We required items to be signed for.
Delivery dates are Monday to Friday unless otherwise specified
Delivery cut off is 3-4pm on most items - earlier time exceptions are large items, high value items, items requiring a pallet (i.e bulk orders) or items which direct ship from the manufacturer or supplier. If you order after cut-off then the order is processed the next day, that means if you ordered Tuesday at 8pm at night, the next day delivery option (if applicable) is Thursday as the order is processed on the Wednesday.
On a large number of items we offer a free delivery service.
Delivery Rates to Highlands, Islands, Northern Ireland & Remote Areas - (excluding screens and Touch Screens)
Non mainland and the Highlands and Islands - this includes anything that goes over water that does not have road access. These rates are determined by couriers based on postcode. If there are multiple items then we may need to quote you for delivery.
This should automatically calculate at the checkout when you enter your address, but sometimes needs to be calculated on a case-by-case basis, please contact us for a quote in this instance.
Screens & Digital Displays
These also have a standard rate ranging upwards from £15 + VAT depending on the size of the product and delivery location, for particularly large/heavy items this is quoted on a case-by-case basis please contact us for a price.
Delivery Rates to Republic of Ireland & rest of EU
We can still ship most items outside of the UK, however, this is quoted on a case-by-case basis so orders cannot be placed through the online checkout without a quoted delivery fee. We can also supply the goods with zero-rated VAT for exports outside the UK. Goods are supplied on DAP Incoterms for exports and we can also accomodate for you to use your own courier to collect the goods from us.
Returns
Faulty Items
Goods Reported Faulty Within 14 Days of Receipt.
If you have a faulty item and are reporting the fault within 14 days of receipt. When the goods are returned to us complete, we’ll issue a full refund to you via your original payment method. We will try and ensure that there is a fault, that often requires is running diagnostics or getting the manufacturer to speak to you directly to determine whether there is a genuine fault rather than just a set up error.
Goods Damaged in Transit
If your goods were damaged in transit it must be reported to us within 3 days. If goods are visibly damaged on receipt the delivery note must be marked accordingly. Once the damaged goods have been collected and received back into our warehouse, we’ll issue a refund via your original payment method. We will require pictures of the damage.
Consumers - If You Have Changed Your Mind – this is for personal use not business or organisations
If you are a private consumer and have changed your mind as long as the goods have not been in your possession for over 14 days, and the item can be sold again as new, then you are entitled to return the goods to us. If the item you are returning is a projector, the lamp hours used must not have exceeded 2 hours otherwise a re-stocking fee will be applied. The cost of returning items is the responsibility of the customer. As new means in original packaging with complete accessory packs and manuals. If any item is marked/damaged, including the packing, there may be a restocking fee. Please contact us directly before sending any goods back to obtain an RMA number without this there may be a delay in dealing with your return. If you purchased for a company, or an organisation you are not deemed a Consumer by law.
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About Just Projectors
We’re here to help you choose the right projector or display - we've been doing it since 2001. Call us to talk through your requirements with our trained team. For higher-end models, we may be able to arrange a loan or demonstration.
We supply leading brands such as Epson, Sony, BenQ, ViewSonic, Panasonic and NEC. Because it’s easy to buy the wrong model, we offer real advice — not just an “add to cart” experience. We compare products side-by-side, offer a price promise, and only supply UK stock for stronger warranty support and genuine peace of mind. We avoid low-quality brands with unverified lumen and resolution claims.
We deliver across the UK and Ireland, with a 2–4 day service to Ireland.