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LX720-4KB RGB

4K HDR RGB Laser Smart Home Projector

  • RGB laser light source delivers lifelike colour and consistent brightness
  • True 4K HDR with 100% BT.2020 coverage for cinematic detail and depth
  • 2,000 ANSI lumens deliver bright, vivid images on screens up to 300 inches
  • 1.3x zoom, H/V keystone, four-corner adjustment and warping for flexible installation
  • Built-in Google TV and native Netflix app for instant access to your favourite content
  • 1 ms input lag and Variable Refresh Rate support keep gameplay smooth and ultra-responsive
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OVERVIEW

The ViewSonic LX720-4KB RGB brings a true cinematic upgrade to your home. Its RGB laser light source covers 100% of the BT.2020 colour space, filling every frame with rich and lifelike colour. With 2,000 ANSI lumens, true 4K UHD resolution, and HDR/HLG support, movies and games stay bright, sharp, and vivid in any lighting condition. Flexible installation options including 1.3x zoom, side projection, H/V keystone, four-corner, and warping adjustments make it easy to create a large-screen setup that fits perfectly in any room. With built-in Google TV, you can stream your favourite apps directly without the need for extra devices, and wireless casting lets you share content instantly from your phone. For gaming, 1 ms ultra-fast input and VRR support ensure responsive, fluid performance that keeps every moment smooth and precise.

Cutting-Edge RGB Laser Technology

Experience visual excellence with the cutting-edge RGB laser technology. More advanced than traditional laser counterpart, this revolutionary technology combines red, green, and blue laser diodes to generate high-quality images with the expansive BT.2020 colour gamut. The mercury-free and lamp-free light source guarantees consistent brightness for up to 30,000 hours*, ensuring lasting entertainment enjoyment.

Cinema-Like Colours

100% BT.2020
wide colour gamut

Enhanced Brightness

2,000 ANSI Lumens
for brilliant images anytime

Maintenance-Free

Up to 30,000
hours lifespan

Eco-Friendly

Mercury-free
for a greener future

*Learn more about the difference between ANSI Lumens and RGB Laser Lumens.

Next-level Colour Brilliance
with BT.2020

This RGB laser projector offers an expansive colour gamut, covering 100% of the BT.2020 colour space, delivering true-to-life colours that exceed the digital cinema standard of DCI-P3. Get ready to embark on a breathtaking journey of vivid colours, all from the best seat in the house—yours.

Ultimate Viewing
Experience with 4K HDR

Immerse yourself in unparalleled clarity with true Ultra HD, enriched by the vibrant visuals of HDR/HLG support. With 8.3 million pixels, this projector's 4K resolution vividly brings movies, sports, games, and your favourite streaming content to life.​

Bring the Big Screen Home​

Turn any room into a personal cinema with a massive screen size of up to 300 inches. From epic movie nights to gaming marathons and live concert streams, the LX720-4KB RGB lets you bring everyone together for unforgettable moments on the big screen.​

Adaptable to Any Environment
with Optical Zoom

Equipped with a 1.3x optical zoom lens, the projector gives users the flexibility to select the ideal setup location within a range, achieving the desired image size without altering the existing interior design.

Perfect Image Projection from All Angles​

Central positioning is no longer necessary with comprehensive H/V keystone and 4 corner adjustment capabilities, making setup a breeze. Get a perfectly aligned image from any projection angles-overhead, below, or side.​

Shape Your Gaming Experience​

With warping adjustment, adapt your screen to any projection surface and take advantage of curves for an always more immersive big screen experience.​​

Ideal Companion for Your Favourite Streaming Devices

Stream smarter with built-in Google TV. The LX720-4KB RGB comes ready to go with your favorite apps like Netflix, YouTube, and Disney+, no extra devices needed. Just sign in and start streaming. Prefer a device you already use? It also works smoothly with Chromecast, Apple TV, Fire TV, Roku, and more. Plus, the USB-A port lets you keep external streamers powered up without extra adapters.

*The ability to power external devices via USB-A depends on the specific power requirements of the connected device.

**The streaming devices of brands stated herein are for demo purposes only and are not preinstalled and not included in the Product. The aforesaid devices are the properties of their respective owners, unaffiliated with ViewSonic, and are neither sponsors nor endorsers of the Product.

***The Product's aforesaid compatibility with streaming devices of brands not stated herein may vary based on specifications. Please verify before purchasing the Product.

Ultrasmooth Experience​​
with Ultra-Fast Input​

LX720-4KB RGB boasts 1ms ultra-fast input*, a hyper-responsive 240Hz refresh rate, and a microsecond-level response time**, the projector delivers seamless viewing in high-intensity scenes.​

*1ms Ultra-Fast Input supports up to 240Hz at 1080p resolution and up to 60Hz at 4K resolution. This feature is automatically activated when keystone, corner adjustment, overscan, and aspect ratio are set to default.

**The response time stated refers to the reaction time of the DMD chip.

Smooth, Stutter-free Gaming with VRR​​

The LX720-4KB RGB uses VRR technology to keep motion smooth and gameplay responsive. It automatically adapts to your device’s frame rate, minimising tearing and stutter so fast action feels natural and in sync.

*VRR performance and compatibility may vary by device, signal format, and content.​

Wireless Screen Casting from Your Smart Devices​​

Dive into your favourite contents within seconds thanks to 5GHz high-speed Wi-Fi connectivity. You can cast or mirror content from your devices to the big screen cable-free.​

*Only works with “smart system” input source

*To enable the AirPlay function, you may need to install a third-party application.

Bluetooth Audio Streaming​​

Wirelessly stream audio from the projector to your Bluetooth headphones, letting you escape the outside world and fully immerse yourself in big-screen entertainment.

*Only works with “smart system” input source

Easy Audio Integration

With HDMI ARC*, the LX720-4KB RGB sends video and audio through a single cable, making it easy to connect to your sound system and keep your setup clean and simple.​​

*The ARC function is only available in HDMI 2 port.​​

Designed with Eye Care in Mind​

The LX720-4KB RGB is designed for low blue light emission, contributing to enhanced eye protection. This projector uses reflective light, which bounces off the wall or screen before reaching your eyes, enabling prolonged viewing with minimal eyestrain.​​​

*The low blue light mode can be activated manually.​​

Dimensions & I/O Connectivity

  1. Zoom/Focus Ring
  2. Keypad
  3. Adjustment Foot
  4. Lens
  5. Front IR
  6. Audio Out
  7. RS-232
  8. USB-A (5V/1.5A)
  9. HDMI 2.0 / HDCP 2.2 (ARC)
  10. HDMI 2.0 / HDCP 2.2

SPECIFICATIONS


  • Specification
    Projection System: 0.47" 4K-UHD
    Native Resolution: 3840x2160
    Brightness: 2000 ANSI Lumens
    Contrast Ratio: 3000000:1
    Display Colour: 1.07 Billion Colours
    Light Source Type: RGB Laser
    Light Source Life (hours) with Normal Mode: 20000
    Light Source Life (hours) with SuperEco Mode: 30000 (Eco)
    Lens: F=2.2-2.42, f=11.965-15.54mm
    Projection Offset: 110%+/-6%
    Throw Ratio: 1.136-1.477
    Optical Zoom: 1.3X
    Image Size: 60"-300"
    Throw Distance: 1.50-9.78m
    (100"@2.50m)
    Keystone: H:+/-25° , V:+/-25°
    Audible Noise (Normal): 33dB
    Audible Noise (Eco): 27dB
    Local Storage: Total 8GB
    (4GB available storage)
    Input Lag: 1ms
    Resolution Support: VGA(640 x 480) to 4K(3840 x 2160)
    HDTV Compatibility: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p
    Horizontal Frequency: 15K-255KHz
    Vertical Scan Rate: 23-240Hz
  • Input
    HDMI: 2
    (HDMI 2.0, HDCP 2.2)
    Wifi Input: 1 (5Gn)
  • Output
    Audio-out (3.5mm): 1
    Audio-out (Bluetooth): 1 (BT5.0)
    Audio-out (HDMI ARC): 1
    (share with HDMI Input)
    Speaker: 10W Cube
    USB Type A (Power): 1 (5V/1.5A)

SUPPORT & DOWNLOADS


Datasheets

LX720-4KB RGB Datasheet