BenQ LH856UST Ultra Short Throw Laser Projector – 3500 Lumens, Full HD, Interactive-Ready
The BenQ LH856UST is a high-performance ultra short throw laser projector designed for modern classrooms, training rooms, and collaborative workspaces. Featuring a bright 3500 ANSI lumens, Full HD (1920×1080) resolution, and a stunning 3,000,000:1 contrast ratio, it delivers sharp, vibrant, and shadow-free visuals even in well-lit environments.
Its ultra short throw ratio of 0.33:1 allows you to project a large image from just inches away, eliminating shadows and glare—perfect for interactive whiteboard setups. The durable laser light source offers up to 20,000 hours of maintenance-free operation in Normal mode, with a sealed, dust-resistant optical engine for long-lasting performance.
The LH856UST also supports BenQ’s PointWrite™ interactive technology (optional), enabling multi-touch and multi-pen collaboration for engaging learning or presentation experiences. With instant on/off, flexible installation, and a host of connectivity options—including dual HDMI, VGA, USB, LAN, and audio—it fits seamlessly into any professional or educational setting.
Key Features:
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Full HD 1080p resolution with ultra-high 3,000,000:1 dynamic contrast for crisp visuals
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Bright 3500 ANSI lumens, ideal for bright rooms
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Ultra Short Throw (0.33:1) — large screen from just a few inches away
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Long-lasting laser light engine — up to 20,000–60,000 hours lifespan
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Interactive-ready with optional PointWrite™ kits
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Dustproof, sealed optical engine (IP6X) to reduce maintenance
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Dual 10W built-in speakers and a wide range of I/O ports for easy integration
📋 Specifications
| Feature | Specification |
|---|---|
| Projection System | DLP |
| Resolution | Full HD (1920 × 1080) |
| Brightness | 3,500 ANSI lumens |
| Contrast Ratio | 3,000,000:1 (dynamic) |
| Aspect Ratio | Native 16:9 |
| Light Source | Laser |
| Light Source Life | 20,000 hours (Normal) 38,000 hours (Eco) up to 60,000 hours (Dynamic) |
| Throw Ratio | 0.33:1 |
| Image Size | ~87″ to 100″ diagonal (at ~0.4m distance) |
| Keystone Correction | 2D Keystone ±30° (Vertical & Horizontal) |
| Optical Engine | Fully sealed, dustproof (IP6X) |
| Built-in Speakers | 10W × 2 |
| Noise Level | 34 dB (Normal), 32 dB (Eco) |
| Power Consumption | ~320W (typical) |
| Dimensions (W × H × D) | 502 × 164 × 399 mm |
| Weight | ~6.5 kg |
| Connectivity Ports | – 2 × HDMI 2.0b – VGA (D-Sub) – Composite Video – Audio In/Out (3.5mm) – RS232 – LAN (RJ45) – USB-A & USB mini-B – IR Receiver |
| Interactive Support | Compatible with BenQ PointWrite™ PW30U & PT20 kits (optional) |
| Instant On/Off | Yes |
| Included Accessories | Power cord, remote control, user manual CD, quick start guide |
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