BenQ LH856UST Projector
- In UK stock, ships from the UK
- UK manufacturer warranty
- UK-based engineers
- No import duty or customs charges
- GBP pricing, UK VAT invoices
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Description
The BenQ LH856UST is a 1080p (1920x1080) interactive ultra-short-throw laser projector delivering 3500 ANSI lumens, aimed at classrooms and training rooms needing brighter, higher-contrast interactive projection than lamp-based alternatives. A 0.33 throw ratio allows near-wall or above-screen mounting to eliminate shadows and glare, and a laser light source rated up to 38,000 hours in eco mode substantially reduces maintenance versus traditional lamp projectors. A 3,000,000:1 dynamic contrast ratio and BenQ's Infographic Mode enhance the detail and colour saturation of text-heavy and graphic-rich educational content. Connectivity includes dual HDMI 2.0b inputs with HDCP2.2, VGA input, LAN (RJ45), USB Type-A and Mini-B, RS232 and a microphone input, plus twin 10W speakers for classroom-filling audio without external speakers. With 2D keystone correction (+/-15 degrees) for simple short-throw alignment, the LH856UST suits schools and training centres upgrading to laser-based interactive projection, and is backed by BenQ's standard 3-year warranty.
Key features
A 0.33 throw ratio combined with a laser light source rated up to 38,000 hours in eco mode delivers bright, near-maintenance-free interactive projection close to the board.
A 3,000,000:1 dynamic contrast ratio and Infographic Mode sharpen text, graphics and infographic content for classroom and training use.
A dedicated microphone input alongside twin 10W speakers lets the LH856UST double as a basic room PA system without additional audio hardware.
Dual HDMI 2.0b, VGA, LAN (RJ45), USB Type-A/Mini-B and RS232 cover typical classroom source and network management needs.
Technical specifications
Throw distance guide
With its 0.33:1 throw ratio, here's how far the projector needs to sit from the screen for common 16:9 image sizes. Try our throw distance calculator for your exact room.
| Image size | Image dimensions | Lens distance |
|---|---|---|
| 60" | 1.33 m × 0.75 m | 0.4 m |
| 80" | 1.77 m × 1.00 m | 0.6 m |
| 100" | 2.21 m × 1.25 m | 0.7 m |
| 120" | 2.66 m × 1.49 m | 0.9 m |
| 150" | 3.32 m × 1.87 m | 1.1 m |
Planning from a real wall? Use the projector room planner to upload a photo, preview the image to scale and find projectors that fit within your maximum available space.
Distances are lens-to-screen, calculated from the manufacturer's stated throw ratio; allow for lens shift and mounting hardware. Always confirm against the manufacturer's installation guide before fixing mounts.
See it on your wall, to scale
Choose a picture size, then upload a wall photo—or scan the QR code and take it on your phone. We'll show the projected picture at its real size.
Documents
Delivery & returns
Estimated delivery 29 Aug - 2 Sept. UK mainland delivery only — some large or made-to-order items may carry longer lead times.
Unused items in original packaging can be returned within 14 days of delivery. Faulty items are covered under manufacturer warranty.
Bought in the UK, backed in the UK
This item is in UK stock and ships to you from within the UK, so the order never crosses a customs border on its way to you.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us — not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts — no currency conversion and no surprises at the door.
Payment & security
Pay securely by card. Education customers can apply for a 30-day purchase order account.
Schools, colleges, sixth forms, universities and multi-academy trusts can order on invoice — no card payment required. Purchase orders and credit terms are for education customers only.
All transactions are processed over an encrypted, secure checkout.
Need help specifying this for your space?
Ask Andrew — he knows the full catalogue and can advise on installation, mounting and compatible AV systems.