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Posted on November 11, 2020 by Phil Jones
Article submitted by a guest reviewer Scott Varner

The LG ProBeam BU50NST is a compact projector designed for various ProAV applications, including enterprise, education, hospitals, and museums. It provides UHD (3840 x 2160) resolution and is rated to deliver 5,000 ANSI lumens of light output. The unit’s laser phosphor light engine has a rated life of 20,000 hours in Standard (high power) mode.

LG BU50NST Specs
Price $4499
Technology DLP with XPR (0.47” DMD)
Native Resolution 3840x2160
Brightness (Manufacturer Claim) 5000
Contrast 3,000,000:1
Zoom Lens Ratio 1.6
Lens Shift Yes
Lamp Life 20,000 hours (Normal mode)
Weight 21.4 lb
Warranty 3 years



The LG ProBeam BU50NST is a compact, 5,000-lumen projector designed for various ProAV applications. The projector’s powerful laser light source is rated for up 20,000 hours allowing years of near maintenance-free operation.

With 5,000 lumens of output, it is bright enough to be utilized in many enterprise, hospital, museum, and education environments.

The BU50NST offers 1.6x lens zoom along with horizontal and vertical lens shift, which is rare on DLP projectors at this price point. Combined with the 12-point warping function, these features reduce image distortion and allow precise alignment with the screen.

The 4K resolution delivers the highly detailed images often required in corporate and healthcare environments. It even includes a DICOM picture mode. In addition to a USB input, HDBaseT™ compatibility allows a single CAT6 cable to carry 4K signals long-distances to the BU50NST.

The ProBeam BU50NST is powered by LG’s WebOS with smart features designed for business and education purposes like (Miracast®) wireless screen mirroring, Wi-Fi, and a web browser.


  • UHD Resolution (3840 x 2160)
  • HDR10
  • DLP XPR imaging (8.3M pixels on screen)
  • 5,000 lumens 
  • Laser Light Engine with up to 20,000 hours lifespan (Normal mode)
  • 3,000,000:1 (Dynamic contrast ratio)
  • 1.6x zoom ratio
  • Lens Shift (+/- 50%V 20%H)
  • Integrated WiFI & RJ45 for network connection
  • WebOS 4.5 
  • Wireless screen share via Miracast
  • Wireless content share via TV Plus app (Android, iOS) or DLNA device
  • Dual 5-Watt speaker system with Bluetooth
  • Bluetooth audio output with lip-sync adjustment 

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