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ViewSonic-LS831WU Description


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


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.

Key Features

  • 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


  • Specification
    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
  • Input
    Computer in (share with component):?1
    HDMI:?2 , (HDMI 2.0 (HDCP 2.2)
    Audio-in (3.5mm):?1
    Audio-in (RCA R/L):?1
    3D VESA (Sync):?1
    RJ45 Input:?1, (LAN control)
  • Output
    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)



At TimesAudio, we make every effort to ensure that all products are shipped within 10 days from the date of order. (please note that the actual shipping time may vary based on the availability of stock.) In the event that a product is not in stock, we will make every effort to promptly obtain the product and ship it to you as soon as possible.


If you require assistance with the installation and connection of your new system, you can schedule a video call with us[TimesAudio]. During the video call, we will walk you through the installation and connection process and provide you with any necessary guidance and support.

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