LG GRU510N 4K Laser Projector Review

January 4, 2021 / By Art Feierman
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The LG GRU510N is an HDR-compatible DLP home theater laser projector that retails for $3999. It utilizes a single DLP (0.47” DMD) chip to reproduce 4K UHD resolution (3,840 x 2,160). The unit's laser phosphor light engine can deliver 5,000 ANSI lumens of light output and has a rated life of 20,000 hours in Standard (high power) mode.

The GRU510N is part of LG's ProBeam series of projectors, which were initially developed for professional applications. The GRU510N is nearly identical to the LG BU50NST business projector we reviewed earlier this year. The only difference between the two units is the model number, and the BU50NST has a longer 3-year warranty.

These models' high brightness, 4K resolution, and good color reproduction are a viable option for an office or a home.

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LG GRU510N Specs
Price $3999
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 2 years

Overview

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The LG ProBeam GRU510N is a compact, 5,000-lumen projector designed to provide a vivid 4K image in any environment, even in a room with high ambient light. The projector's laser light source is rated for up 20,000 hours allowing years of near maintenance-free operation.

The GRU510N is compatible with HDR10 content, and it is also one of a limited number of projectors capable of Dynamic HDR Tone Mapping. This feature automatically adjusts dark/bright levels to optimize the unit's HDR performance.

The GRU510N offers a 1.6x zoom lens 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.

While LG ProBeam models do not have all the smart features found in their Cinebeam products, the GRU510N does have several notable features that enhance connectivity. The GRU510N is powered by LG's WebOS, including wireless mirroring (Miracast®) and Bluetooth pairing. Wi-Fi makes it easy to connect to the internet or access content available on your home network.

Good picture and low maintenance make the GRU510N a compelling alternative to a large flat panel TV, especially in a room where space is at a premium.

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Highlights

  • UHD Resolution (3840 x 2160)
  • HDR10 with Dynamic Tone Mapping
  • DLP XPR imaging
  • 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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