Optoma UHD51A Amazon Alexa 4K Ultra HD Home Theater Projector - (Certified Refurbished)

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Item Description:
  • Alexa smart home and custom skills ready
  • 4K UHD and bright 2,400 lumens with RGBRGB color wheel
  • HDR10 support for brighter whites, deeper black-levels and vivid colors
  • Take control of your home theater via voice commands with the Amazon Alexa Enabled, 4K UHD 2,400 lumen Optoma UHD51A smart projector. Integrated smart home and custom skills enables easy integration into your Amazon Alexa-powered home for seamless voice control.

    It utilizes the latest Texas Instruments 4K UHD DLP chipset capable of displaying 8.3-million simultaneous distinct pixels at screen sizes 140-inches and higher. High Dynamic Range (HDR) compatibility and wide color gamut guarantee rich life-like color and contrast for immersive home cinema experiences.

    A pair of HDMI 2.0 inputs with HDCP 2.2 support ensures compatibility with the latest devices and game consoles. A 1.3x optical zoom and 15% vertical lens shift provide installation flexibility.

    Alexa Smart Home
    Alexa Smart Home Skill enables projector control via Amazon Alexa. Supported control functions include power on/off, volume level, input selection and the USB media player playback.

    DLP Technology
    DLP (Digital Light Processing) is a proprietary technology that offers digital projection with higher contrast, faster response time, good pixel structure, and virtually no color degradation.

    Full 3D
    Display true 3D content from almost any 3D source, including 3D Blu-ray Disc players, 3D broadcasting, and the latest-generation game consoles. Support for 144Hz rapid-refresh rate provides ultra-smooth flicker-free images. Optoma 3D glasses required.

    Dynamic Black Technology
    This feature gives more depth to your image by smoothly adjusting the lamp output to create a stunning high contrast ratio. Bright scenes appear crisp and clear, while dark scenes remain detailed with deep blacks and exceptional light and shade detail.

    Using sophisticated frame-interpolation technology, advanced motion control processing eliminates motion blurring or image judder, even in high-speed action sequences. PureMotion works in both 2D and 3D and is optimized for 1080p24.

    This technology ensures all the information contained in an image is accurately reproduced on the screen to give a stunning crystal clear, pin-sharp picture. Complex algorithms detect each frame and improve image sharpness before the frame is projected.

    This mode allows the projector to reproduce more detailed shades of color for vibrant, natural-looking images. Colors are more saturated and more accurate.

    Vertical Lens Shift
    Vertical lens shift simplifies installations by shifting the image up and down without image distorsion to provide a wider range of projector placement possibilities,  making it easier to position the projector in a room.

    High dynamic range (HDR) technology delivers brighter whites and deeper black levels. Optoma HDR accepts HDR10 signals with four selectable picture modes: Normal, Bright, Detail, Film

    Color the way it is meant to be seen - rich, colorful and cinematic pictures and games via DCI-P3 wide color gamut coverage.

    HDR signals are mapped using REC.2020 tone mapping and provides coverage for REC.709, DCI-P3 and a wide coverage color gamut.

    PC-Free USB 4K UHD HDR Media Player
    Integrated 4K UHD HDR USB Media Player provides playback of 1080p and 4K UHD HDR video, audio files and images along with support for Office Documents and PDF Files.

    Product Details

    • Alexa smart home and custom skills ready
    • 4K UHD and bright 2,400 lumens with RGBRGB color wheel
    • HDR10 support for brighter whites, deeper black-levels and vivid colors
    • Dynamic Black delivers 500,000:1 contrast ratio for exceptional black levels
    • HDMI 2.0 with HDCP 2.2 connectivity ensures compatibility with 4K UHD video sources
    • Vertical lens shift and 1.3x zoom for easy and flexible installation

    Technical Specifications


    • Display Technology - Single 0.47" 4K UHD DMD DLP Technology by Texas Instruments
    • Color Wheel - RGBRGB 6 Segment color wheel
    • Native Resolution - 4K UHD 3840x2160 @ 60Hz with XPR Technology
    • Maximum Resolution - 4K 4096x2160 @ 60Hz
    • Brightness - 2,400 ANSI lumens
    • Contrast Ratio - Up to 500,000:1 with Dynamic Black
    • Color Gamut Support - REC.709 color gamut provides rich accurate color based on the HDTV broadcast specification & used with all non-HDR content. DCI-P3 wide color gamut is the equivalent to color in the CIE 1931 color space, resulting in vivid colors
    • HDR (High Dynamic Range) - HDR10 compatible (REC.2020) Picture Modes: Normal, Bright, Detail, Film HDR SIM (simulate HDR effect with non-HDR content)
    • 4K UHD Upscale - Upscales WXGA, 720p, 1080p, WUXGA, 1440p resolutions and frame rates up to 4K UHD (3840x2160), 60 Hz
    • Video Processing - UltraDetail Technology enhances image quality by improving image depth and clarity
    • Color Depth - 3840x2160 @30Hz YUV 4:4:4 (8bit, 10bit, 12bit), YUV 4:2:2 (8bit, 10bit, 12bit), YUV 4:2:0 (8bit, 10bit, 12bit) 3840x2160 @60Hz YUV 4:4:4 (8bit), YUV 4:2:2 (8bit), YUV 4:2:0 (8bit, 10bit, 12bit)
    • Lamp Life and Type - 4000/10,000/15,000 (Bright/ECO/Dynamic)
    • Projection Method - Front, rear, ceiling mount, table top
    • Vertical Lens Shift - 15% offset (with tolerance +/- 5%)
    • Uniformity - 80%
    • Offset - 100%
    • Aspect Ratio - 16:9 (native), 4:3 and LBX compatible
    • Throw Ratio - 1.21 - 1.59 (with tolerance +/- 5%)
    • Projection Distance - 2.9' - 34.89'
    • Image Size - 34.1" - 302.4 (34.1" to 140" optimal image size)
    • Projection Lens - F=2.5~ 3.26, f=20.91 ~ 32.62 mm manual focus
    • Optical Zoom - 1.3x
    • Digital Zoom - 0.8 - 2.0
    • Audio - 2x5W speakers (stereo)
    • Noise Level - 28/25dB (Bright/ECO)
    • Remote Control - Full function home remote control
    • Operating Temperature - 41–104°F (5–40°C), 85% max humidity
    • Power Supply - AC input 100–240V, 50–60Hz, auto-switching
    • Power Consumption - 317W typical (Bright mode), 348W max (Bright mode), 259W typical (Eco+ mode), 285W max (Eco+ mode)
    • High Altitude - Operating temp @ sea level to 10000 feet = 23C (max); must manually switch to high altitude mode @ 5000 feet & above (using OSD)


    • Amazon Alexa Commands - Smart home commands: power on/off, volume control (1-10), change input source, media player controls (play, stop, pause, next, previous, FF, REW, start over) Custom skill commands: change display mode, HDR picture mode, PureMotion setting
    • USB Media Player Compatibility - Videos: 480p, 720p, 1080p, 1440p, 4K UHD, 4K UHD HDR File formats: MKV, MP4, M4V, AVI, H.264, HEVC, MOV, TS Audio: MP3, AAC, WAV, FLAC 16/24-bit Images: JPEG, BMP, GIF
    • Multimedia Streaming(HD Cast Pro compatible) - Casting: videos, images and music from Android, iOS, Windows and Mac OS X Video streaming: Web browser provides access to popular websites for video streaming.
    • Wireless Screen - Mirror Mirror Android, Windows and Mac OS X (HD Cast Pro Compatible)
    • PC-free Image Viewer And Document Viewer - Supports viewing of office documents (Word, Excel & and Document Viewer Powerpoint), PDFs and images via USB storage devices Autoplay PDF & Powerpoint: 3, 5, 10, 15 & 20 second intervals


    • Computer Compatibility - 4K UHD 2160p, WUXGA, HDTV 1080p, UXGA, SXGA, WXGA+, WXGA (1366x768), WXGA, HDTV (720p), XGA, SVGA, VGA, PC and Mac compatible
    • Video Compatibility - 4K UHD 2160p (24/50/60Hz), 1080p (24/50/60Hz), 1080i (50/60Hz), 720p (50/60Hz), 480i/p, 576i/p
    • HDR Source Compatibility - Ultra HD Blu-Ray player, 4K UHD streaming media device (Roku 4K Ultra), Xbox One S / One X (Ultra HD Blu-ray, 4K media streaming & HDR gaming) and PS4 Pro (4K UHD media streaming and 4K UHD HDR gaming only)
    • 3D Compatibility - Side-by-side:1080i50 / 60, 720p50 / 60 Blu-ray 3D / Frame-pack: 1080p24, 720p50 / 60 Over-under: 1080p24, 720p50 / 60
    Projector - Certified Refurbished

    Lens cap

    AC power cord

    HDMI cable

    Remote control

    Batteries for remote

    WUSB Wi-Fi adapter (for Alexa)

    Multilingual CD-ROM
    This Kit Includes:

    UHD51A Amazon Alexa 4K Ultra High Definition Home Theater Projector Refurbished
    Optoma UHD51A Amazon Alexa 4K Ultra High Definition Home Theater Projector Refurbished
    Our Price: $999.00

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