The BenQ LH820ST 3600 Lumens 1080p Installation Projector redefines immersive viewing in diverse environments. This high-performance projector is tailored for users who demand precision, quality, and flexibility.

Smooth and Realistic Interaction Experience gaming and simulation like never before with the LH820ST's Fast Mode, delivering ultra-low latency of less than 17ms at 1080P/60Hz. This feature ensures smooth, uninterrupted play and realistic interaction, making it perfect for high-speed gaming and real-time data applications.

Large Images from Short Distances The LH820ST's short-throw ratio (T/R 0.5) enables large, full HD resolution images from a minimal distance. This capability not only provides greater flexibility in smaller spaces but also makes installation in challenging environments a breeze.

Effortless Blending and Consistency Equipped with BenQ's unique Factory White Balance Adjustment, the projector offers effortless blending and consistent image quality across multiple projections. This feature is invaluable for creating expansive visual landscapes without compromising on color uniformity.

Flexible Installation Options Support for wide corner fit adjustment and 2D keystone correction ensures the LH820ST can be installed in a variety of settings, from traditional classrooms and conference rooms to creative installations and home theaters.

Maintenance-Free Laser Light Source At the heart of the LH820ST lies a maintenance-free laser light source, boasting up to 30,000 hours of life. Coupled with an IP5X Dustproof sealed engine, the projector promises long-lasting reliability and exceptional image quality, even in challenging conditions.

Technology and Quality The LH820ST utilizes DLP technology with a dual color wheel system, achieving up to 90% Rec. 709 color accuracy for vivid, true-to-life images. Its 3600 ANSI Lumen brightness ensures clarity in brightly lit environments, while a native high contrast ratio of 3,000,000:1 reproduces deep blacks and vibrant colors. The highly durable DMD chip further guarantees vibrant colors and accurate whites over an extended period, preventing yellowing and color degradation.

IP5X DustGuard™ Technology Designed to withstand severe conditions, the LH820ST features IP5X DustGuard™ technology, protecting its laser modules, DMD chip, and optical components from dust ingress. This not only prolongs the projector's lifespan but also ensures uninterrupted high-quality projection.

The BenQ LH820ST is not just a projector; it's a gateway to immersive, high-quality visuals, offering unparalleled flexibility, reliability, and performance. Whether it's for a high-stakes gaming setup, professional installation, or vivid presentations in bright environments, the LH820ST stands as the premier choice for those who refuse to compromise on quality.


All Specifications

Display Specifications

  • Brightness (ANSI lumens): 3600
  • Native Resolution: 1080P (1920x1080)
  • Native Aspect Ratio: 16:9
  • Contrast Ratio (FOFO): 3,000,000:1
  • Display Color: 30-bit (1.07 billion colors)
  • Light Source: Laser
  • Light Source Life:
    • Normal: 20,000 hrs
    • ECO: 30,000 hrs

Optical Specifications

  • Throw Ratio: 0.497
  • Zoom Ratio: Fixed
  • Lens: F/2.8 (Wide), f = 7.46mm
  • Projection Offset (Full-Height): 109%
  • Keystone Adjustment: 2D, Vertical ± 30 degrees; Horizontal ± 30 degrees

Picture Quality

  • Rec. 709 Coverage: 90%
  • Picture Modes: Bright, Golf, Presentation, sRGB, User 1, User 2, Video


  • Input Lag: 16.7 ms (1080p@60Hz)
  • Resolution Support: VGA(640 x 480) to Full HD(1920 x 1080)
  • Horizontal Frequency: 15K~102KHz
  • Vertical Scan Rate: 23~120Hz


  • PC in (D-sub 15pin): x2 (PC in-1, PC in-2)
  • Monitor out (D-sub 15pin): x1
  • Composite Video in (RCA): x1
  • S-Video in (Mini DIN 4pin): x1
  • HDMI in: x2 (HDMI-1 (1.4b/HDCP1.4), HDMI-2 (1.4b/HDCP1.4))
  • LAN (RJ45): x1
  • USB Type A: x1 (USB Type A-1 (2.0/Power Supply 1.5A))
  • USB Type Mini B: x1 (USB Type Mini B-1 (service/Page up&down))
  • RS232 in (DB-9pin): x1


  • Speaker: x1, 10W
  • Audio in (3.5mm Mini Jack): x1
  • Audio out (3.5mm Mini Jack): x1
  • Microphone in (Mini Jack): x1

Environmental Conditions

  • Operating Temperature: 0~40℃
  • Power Supply: AC 100 to 240 V, 50/60 Hz
  • Typical Power Consumption (110V): 315W
  • Stand-by Power Consumption: <0.5W
  • Acoustic Noise (Typ./Eco.)(dB): 33/29


  • Remote Control w/ Battery: RCA011
  • Power Cord (by region): x1 (3.0M)
  • VGA(D-sub 15pin) Cable: x1 (1.5m)
  • Quick Start Guide: x1 21L
  • Warranty Card (by region): Yes
  • Lens cover: Yes
  • Universal Ceiling Mount: (Optional) CM00G3

Dimensions & Weight

  • Dimensions (WxHxD) (mm): 410 x 272 x 157.7 mm
  • Net Weight (kg): 5.6 Kg+/- 100g
  • Dimensions (WxHXD) (inch): 15.9 x 10.6 x 6.15 inch
  • Net Weight (lb): 12.3 lb+/- 100g

Projection System

  • Projection System: DLP
Barcode # 840046047986
Brand BenQ
Shipping Weight 6.0000kg
Shipping Width 0.300m
Shipping Height 0.400m
Shipping Length 0.300m
Shipping Cubic 0.036000000m3

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