ViewSonic LS831WU 4,500 ANSI Lumens WUXGA Ultra Short Throw Laser Installation Projector

  • 0.25 ultra short throw for space saving installation
  • 2nd generation Laser Phosphor technology with 20,000 hours lifespan
  • 4,500 ANSI Lumens offering bright images in any environment
  • Larger screen size with lower cost-per-inch
  • Cost-effective built-in HDBaseT receiver
  • Creativity realized by 360° projection



ViewSonic’s LS831WU is an advanced 4,500 ANSI Lumens WUXGA ultra short throw installation projector perfect for public and commercial display applications. With a 0.25 throw ratio, users can easily get 100” screen from only 21 cm away. Screen size can further be expanded to up to 150″ at a lower cost-per-inch compared to commercial displays. Adopting the 2nd generation laser phosphor technology, it offers consistent high brightness for a reliable 20,000 hours lifespan. Built-in HDBaseT receiver and 360° projection capability together ensure the ease of use desired. The embedded 20W cube speakers offer powerful audio right out of the box with three fine-tuned audio modes suitable for different application scenarios.


Native Resolution: 1920×1200
DMD Type: DC3
Brightness: 4500 ANSI Lumens
Contrast Ratio: 3000000:1
Display Color: 1.07 Billion Colors
Light Source Type: Laser Phosphor system
Light Source Life (Normal): up to 20000
Lamp Watt: Nichia 67W x2
Lens: F=2, f=2.44mm
Projection Offset: 140%±6%
Throw Ratio: 0.252
Optical Zoom: Fixed
Digital Zoom: 0.8x-2.0x
Image Size: 70"~200"
Throw Distance: 0.06-0.72m, (100”@0.21m)
Keystone: H:+10°/-8° , V:+/-10°
Audible Noise (Normal): 34dB
Audible Noise (Eco): 29dB
Input Lag: 16ms
Resolution Support: VGA(640 x 480) to 4K(3840 x 2160)
HDTV Compatibility: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Video Compatibility: NTSC, PAL, SECAM
Horizontal Frequency: 15K~102KHz
Vertical Scan Rate: 23~120Hz


Computer in (share with component): 1
Composite: 1
S-Video: 1
HDMI: 2 , (HDMI 2.0 (HDCP 2.2)
Audio-in (3.5mm): 1
Audio-in (RCA R/L): 1
3D VESA (Sync): 1
HDBaseT: 1
RJ45 Input: 1, (LAN control)


Monitor out: 1
Audio out (3.5mm): 1
Speaker: 10W Cube x 2
USB Type A (Power): 1 (5V/ 1.5A), (share with service)
12V Trigger (3.5mm): 1 (3.5mm)


RS232 (DB 9-pin male): 1
RJ45: 1


Power Supply Voltage: 100-240V+/- 10%, 50/60Hz , (AC in)
Power Consumption: Normal: 504W, Standby: <0.5W
Operating Temperature: 0~40℃
Net Weight: 9.9kg
Dimensions (WxDxH) with Adjustment Foot: 492x387x157mm
OSD Language: English, French, Spanish, Thai, Korean, German, Italian, Russian, Swedish, Dutch, Polish, Czech, T-Chinese, S-Chinese, Japanese, Turkish, Portuguese, Finnish, Indonesian, India, Arabic, Vietnamese, Greek, (23 languages)

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