ViewSonic LS831WU

Brand	ViewSonic
Type	Education
Status	Discontinued
Released	June 2020
Resolution	WUXGA
Imaging technology	DLP
Light source	Laser (phosphor)
Brightness	4,500 lm ANSI
Throw ratio	0.25:1

A single-chip DLP ultra short throw laser projector with a 1920x1200 chip and a laser phosphor light source, rated at 4,500 ANSI lumens. It has a fixed 0.252:1 lens with no lens shift, two HDMI 2.0 inputs, HDBaseT, VGA and composite inputs, two 10 W speakers and a 20,000-hour light source, aimed at classrooms and meeting rooms.

Data sheet

Picture

White light output	4,500 lm ANSI
Imaging technology	DLP
Native resolution	WUXGA (1920 × 1200)
Native aspect	16:10Derived
Dynamic contrast	3,000,000:1
Picture mode memories	2
3D	Yes
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential

Light source

Light source	Laser (phosphor)
Emitter	Blue laser + phosphor
Light-source life	20,000 h

Optics

Throw ratio	0.25:1100″ · 0.54 m
Image size	70–200 in
Zoom	None
Focus	Manual
Vertical lens shift	None
Horizontal lens shift	None
Vertical keystone	5°
Horizontal keystone	5°
Corner correction	4-corner
Interchangeable lens	No

Inputs & control

HDMI inputs	2 × HDMI 2.0 (HDCP 2.2)
Other video inputs	VGA, Composite, HDBaseT
Max input resolution	4K UHD
Audio inputs	3.5 mm, RCA
Control ports	RS-232, 12 V trigger
Control-system drivers	Crestron, AMX

Smart platform

Ethernet

Yes

Audio

Speaker power	20 W
Speakers	2
Layout	Stereo
Audio outputs	3.5 mm
HDMI audio return	NoneDerived

Physical & installation

Dimensions (W × D × H)	492 × 387 × 157 mm
Weight	9,900 g
Orientations	Table, Ceiling, Rear
Ceiling mount	M4, 12.8–15.8 mm screws

Environment & power

Operating temperature	0–40°C
Operating humidity	10–90%RH
Altitude	3,000 m · high-altitude mode
Power draw	504 W
Standby	Up to 0.5 W
Mains input	100–240 V · 50/60 Hz

Safety & support

Laser class	Class 1
Marks	FCC
Warranty	🇺🇸 US 3 yr
User manual	viewsonicglobal.com

In the box

In the box	Power cord, Remote, Quick start guide, VGA cable
Remote	IR

Similar models

Model	Resolution	Tech	Lumens	Price
ViewSonic PA700W WXGA · DLP	WXGA	DLP	4,500	$429 −$2,071	Compare
ViewSonic PA700X 1024 × 768 · DLP	1024 × 768	DLP	4,500	$399 −$2,101	Compare
Epson PowerLite L210W WXGA · 3LCD	WXGA	3LCD	4,500	$1,089 −$1,411	Compare
ViewSonic LS630W WXGA · DLP	WXGA	DLP	4,500	$749 −$1,751	Compare
Epson PowerLite L260F 1080p · 3LCD	1080p	3LCD	4,600 +100	$1,079 −$1,421	Compare
Epson PowerLite 780E 1080p · 3LCD	1080p	3LCD	4,200 −300	—	Compare

Other

Tools

Throw calculator — How far from the screen the LS831WU needs to sit for a given image size, set to its 0.252:1 lens.
Download spec as CSV — Every value on this data sheet with its unit and source, one row per spec.
Download spec as JSON — The same data from the open data API, with variants and identifiers.

Variants & identifiers

Use these to confirm a listing is this exact model. Any of them works at /p/{code}.

Variant	Region	Type	Code
Standard	🇺🇸 US	UPC	766907005448
Standard	🇺🇸 US	MPN	LS831WU
All variants	All regions	Model number	VS18021