Viewsonic LX720-4K Projector

UHD 4K (3840x2160) · 3500 lumens · 1.127-1.465 · Standard throw

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Resolution UHD 4K (3840x2160)
Brightness 3500 lumens
Throw ratio 1.127-1.465
Type Standard throw

Viewsonic LX720-4K Projector is a projector with UHD 4K (3840x2160) resolution and 3500 lumens of brightness. For a lit room, look for 3,000 lumens or more. It came out in 2026.

Released: 2026-01-25

Specifications

Key specs

Resolution: UHD 4K (3840x2160)
Brightness: 3500 lumens
Throw ratio: 1.127-1.465
Type: Standard throw
Released: 2026-01-25
Part number: LX720-4K

Projector

Screen size compatibility: 1524 - 7620 mm (60 - 300")
Projection distance: 1.49 - 9.72 m
Projector brightness: 3500 ANSI lumens
Projector native resolution: UHD 4K (3840x2160)
Contrast ratio (typical): 3000000:1
Native aspect ratio: 16:9
Number of colours: 1.07 billion colours
Keystone correction, horizontal: +-25°
Keystone correction, vertical: +-25°

Light source

Light source type: Laser
Service life of light source: 20000 h
Service life of light source (economic mode): 30000 h

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Lens system

Focus: Manual
Focal length range: 11.9 - 15.5 mm
Aperture range (F-F): 1.94 - 2.12
Zoom capability: Yes
Throw ratio: 1.127-1.465

Video

3D: Yes
Supported graphics resolutions: 640 x 480 (VGA), 3840 x 2160
Supported video modes: 480i, 576i, 720p, 1080i, 1080p, 2160p

Ports & interfaces

HDMI version: 2.0
USB 2.0 Type-A ports quantity: 1
Serial interface type: RS-232
HDMI ports quantity: 2
Audio Return Channel (ARC): Yes

Network

Smart TV: Yes
Wi-Fi: Yes
Bluetooth: Yes
Bluetooth version: 5.0

Storage

Internal storage capacity: 8 GB

Features

Noise level (economic mode): 26 dB
HDCP: Yes
On Screen Display (OSD): Yes
Noise level: 32 dB

Multimedia

Built-in speaker(s): Yes
RMS rated power: 10 W

Design

Market positioning: Home cinema
Product type: Standard throw projector
Product colour: White

Power

Power source: AC
Power consumption (typical): 143 W
Power consumption (standby): 0.5 W
AC input voltage: 100-240 V
AC input frequency: 50/60 Hz

Operational conditions

Operating temperature (T-T): 0 - 40 °C

Weight & dimensions

Width: 312 mm
Depth: 234 mm
Height: 104 mm
Weight: 3.5 kg

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About this product

Transform your home into a cinematic experience with the LX720-4K smart laser projector. Equipped with 3rd-generation laser phosphor technology, it delivers 3,500 ANSI Lumens of brightness and up to 20,000 hours of lamp-free use, ensuring vivid visuals day or night. Enjoy immersive 4K HDR picture quality on screens up to 300 inches, paired with a built-in 10W cube speaker for rich, room-filling sound. With features like 1.3x optical zoom, H/V keystone correction, and four-corner adjustment, setup is simple and flexible. Plus, with Google TV and a native Netflix app, the LX720-4K brings effortless streaming and premium entertainment into any room. Reliable Performance for Endless Fun The LX720-4K adopts 3rd-generation laser phosphor technology for long-lasting, lamp-free performance. With a lifespan of up to 20,000 hours, there's no need for lamp replacements—delivering reliable, year-round entertainment while saving you time, effort, and ongoing maintenance costs. Ultimate Viewing Experience with 4K HDR Experience true 4K UHD clarity and dynamic visuals powered by HDR/HLG and 3D support*.

User manual (PDF)

LX720-4K vs similar projectors

	Viewsonic LX720-4K Projector	Viewsonic LX720-4KB Projector	Viewsonic LX720-4KE Projector	Viewsonic LS710-4KE Projector
Resolution	UHD 4K (3840x2160)	UHD 4K (3840x2160)	UHD 4K (3840x2160)	UHD 4K (3840x2160)
Brightness	3500 lumens	3500 lumens	3500 lumens	3500 lumens
Throw ratio	1.127-1.465	1.125 - 1.463	1.125 - 1.463	1.06 - 1.45
Type	Standard throw	Standard throw	Standard throw	Standard throw
Released	2026	2025	2025	2024