Brand: BenQ
Category: projector
  • Lumens: 3500 lumens
  • Standard Resolution: WXGA(1280*800)
  • Display Chip: Texas Instruments DLP digital optical processing projection technology
  • Display Technology: DLP
  • CPU:
  • RAM:
  • Storage:

Our Rating

The overall rating is based on review by our experts

7 3.5 1
  • Design 7 / 10
  • Picture Quality 7 / 10
  • Brightness 8 / 10
  • Performance 6 / 10

BenQ LW81CUST is a laser projector for educational use. The projector has 3,500 lumens and WXGA resolution, which can project clear and bright images.

BenQ LW81CUST - Specs

Optical Parameters

Brand Brand BenQ
Brand Model Brand Model BenQ LW81CUST
Brightness (ANSI lumens) Brightness (ANSI lumens) 3500 lumens
Display Chip Display Chip Texas Instruments DLP digital optical processing projection technology
Display Technology Display Technology DLP
Standard Resolution Standard Resolution WXGA(1280*800)
Maximum Supported Resolution Maximum Supported Resolution 1920*1080
Image Contrast Ratio Image Contrast Ratio 20000:1
Throw Ratio Throw Ratio 0.233:1
Keystone Correction Keystone Correction Vertical: ± 40 degrees
Lamp Life Lamp Life 20000 hours
Lamp Type Lamp Type laser

Projection Parameters

Product type Product type Educational Projector
Image Size Image Size,projector1 80-130 inches
Screen ratio Screen ratio 16:10
Screen color Screen color Extreme color technology, 3D color management


I/O Connection Ports Connection Ports 1 x Computer in
1 x S - Video in
2 x HDMI (1.4 a)
1×Composite Video in (RCA)
1 x Component Video in
1 x Audio input
1×Audio L/R in (RCA)
1 x Microphone input
Output port 1 x Moniter Out
1 x Audio output
Control interface 1×RS232 (DB-9 pin)
1 x LAN (RJ45)
1 x USB (Type B)


Size(HxWxD) Size(HxWxD) 420×395×130mm
Power Usage Power Usage 245W, standby power: < 0.5W
Noise Level Noise Level Normal mode: 30dB, economic mode: 28dB
Machine weight Machine weight 8.5kg
Accessories Accessories BenQ lw81cust   x1
power cord   x1
Remote control / battery   x1
Quick use manual   x1
VGA cable   x1
warranty card   x1
Warranty Warranty 2 years
other other 3D


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