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Optoma UHD55

4K home theater projector with HDR

Item # 343UHD55

This projector delivers an ultra-fast 240Hz refresh rate for 1080p gaming on a massive scale.

This projector delivers an ultra-fast 240Hz refresh rate for 1080p gaming on a massive scale.

Item # 343UHD55

In stock

Since 1974

Years of experience making people happy.

60-day returns

If you don't love it, send it back.

Free lifetime tech support

Whenever you need a hand.

About the Optoma UHD55

Massive movies and games

The UHD55 is a great way to enjoy immersive movie nights at home. It offers a 4K UHD picture with Wide Color Gamut mode and support for HDR (High Dynamic Range) so you get lifelike color and detail on screens up to 300 inches. And it produces 3,600 lumens of brightness, so you can enjoy a vivid picture even in rooms with some ambient light.

Massive movies and games

The UHD55 is a great way to enjoy immersive movie nights at home. It offers a 4K UHD picture with Wide Color Gamut mode and support for HDR (High Dynamic Range) so you get lifelike color and detail on screens up to 300 inches. And it produces 3,600 lumens of brightness, so you can enjoy a vivid picture even in rooms with some ambient light.

This projector is also a great option for gamers who want to upsize their play area. It has an input response time of 16.9ms for 4K at 60Hz or a lightning fast 4ms for 1080p at 240Hz — great for fast-paced console or PC gaming. 

Smart features

The UHD55 includes access to apps via the Optoma Marketplace so you can use streaming services like Netflix® and YouTube without having to hook up a separate source. Amazon Alexa and Google Assistant compatibility means you can control the projector's basic commands with your voice control device of choice.

DLP micromirror technology

If you've been to a movie theater in the last twenty years, there's a good chance you've seen a DLP (Digital Light Processing) projector in action. Those professional projectors are massive and expensive, and they feature three DLP imaging chips — one each for the red, green, and blue color primaries.

Most home DLP projectors, including the UHD55, use a single DLP chip with a color wheel to reproduce the full color spectrum. The underlying technology sounds like something out of science fiction: DLP chips use millions of tiny mirrors to control the individual pixels that make up the image. 

The way it does 4K

The chip in this projector has a native pixel resolution of 1920 x 1080. To display all the pixels needed for 4K, each frame of video is split horizontally and vertically four ways, and they're displayed very rapidly one after the other, with the pixels shifted diagonally. Your eyes perceive it as a single fluid image containing all of the original detail in the 4K video signal. 

Simple setup

The UHD55 sets up easily on a table, or you can pick up a bracket and ceiling-mount it. Its 4-corner adjustment and 2D keystone correction features add flexibility to your installation options.

The projector's built-in speakers can also help facilitate a quick setup. But if you want a little more, use the optical digital audio or minijack audio output to connect to a sound system. It has two HDMI inputs for connecting your high-definition sources.  

For the best picture quality from any projector, we recommend using a projector screen.

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Product highlights:

    Picture:
    • uses single-chip DLP system with XPR pixel-shifting technology to display true 4K UHD resolution (3840 x 2160)
    • widescreen 16:9 aspect ratio
    • recommended image size: 34.1" to 302.4"
    • light output: 3,600 lumens
    • covers 95% of the DCI-P3 color space (the digital cinema standard)
    • dynamic black technology for enhanced contrast and black level
    • 1,200,000:1 contrast ratio
    • HDR-compatible for lifelike texture and detail (HDR10 and HLG)
    • supports 3D content
    Smart features:
    • built-in Android™ OS lets you access your favorite streaming services like Netflix and YouTube without having to hook up a separate source
    • compatible with Google Assistant and Amazon Alexa devices for voice control (sold separately)
    Gaming features:
    • enhanced gaming mode with ultra-fast response time supported on HDMI input 1
      • 4K at 60Hz with 16.9ms input lag
      • 1080p at 240Hz with 4ms response time
    Image adjustments:
    • 1.3X zoom lens (manual)
    • 4-corner geometric adjustment helps with off-center placement
    • horizontal keystone correction: +/- 40°
    • vertical keystone correction: +/- 40°
    • adjust for curved screens with 3x3 warping correction
    Connections:
    • 2 HDMI 2.0 inputs
    • VGA input for connecting a computer
    • two USB Type-A ports
    • one 3.5mm stereo minijack input and 1 stereo minijack output
    • RS-232C port for external control of the projector via compatible computer or third-party control device
    • detachable power cord
    • S/PDIF optical digital audio output
    • 12-volt trigger output for controlling a motorized screen
    General features:
    • 240-watt lamp (lasts up to 15,000 hours in Dynamic mode)
    • quiet cooling fan (26 dB)
    • built-in speaker (10 watts)
    • backlit remote control
    • projection method: front, rear, upside down
      • can be ceiling-mounted with bracket (sold separately)
    • 12-7/16"W x 4-11/16"H x 10-5/8"D
    • weight: 8.6 lbs.
    • warranty: 1 year parts & labor (90 days on lamp)
    • Our 60-day money-back guarantee
    • this projector does not include any type of built-in TV tuner
    • MFR # UHD55

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