Epson PowerLite L260F vs ViewSonic LS831WU

	Epson PowerLite L260F $1,079	ViewSonic LS831WU MSRP $2,500
Key differences
White light output	4,600 lm ISO (Normal power)	4,500 lm ANSI
Native resolution	1080p (1920 × 1080)	WUXGA (1920 × 1200)
Throw ratio	1.32–2.12:1	0.25:1
Fan noise	Normal 37 dB(A) · Eco 27 dB(A)	—
Price	$1,079	MSRP $2,500
Room fit80″100″120″150″
Distance to screen	2.9–4.7 m	0.54 m
Brightness
Rated brightness	4,600 lmDerived	4,500 lmDerived
White light output	4,600 lm ISO (Normal power)	4,500 lm ANSI
Colour light output	4,600 lm (Normal power)	—
Brightness by mode	Normal 4,600 lm · Eco 3,200 lm	—
Eco brightness	70%Derived	—
Display system
Imaging technology	3LCD	DLP
On-screen resolution	1080p (1920 × 1080)Derived	WUXGA (1920 × 1200)Derived
Native resolution	1080p (1920 × 1080)	WUXGA (1920 × 1200)
Native aspect	16:9Derived	16:10Derived
Pixel shift	None	—
Contrast
Dynamic contrast	Over 5,000,000:1	3,000,000:1
Calibration
Picture mode memories	—	2
3D
3D	—	Yes
3D formats	—	Frame packing, Side-by-side, Top-bottom, Frame sequential
Light source
Light source	Laser (phosphor)	Laser (phosphor)
Emitter	Blue laser + phosphor	Blue laser + phosphor
Light-source life	20,000 h normal · 30,000 h eco	20,000 h
Life defined as	50% brightness	—
Light output control	Continuous	—
Constant brightness mode	Yes	—
Warm-up time	30 s	—
Optics
Throw ratio	1.32–2.12:1	0.25:1
Image size	31–310 in	70–200 in
Zoom	Optical	None
Zoom ratio	1.61×Derived	—
Focal length	18.2–29.1 mm	—
Aperture (f-number)	1.51–1.77	—
Focus	Manual	Manual
Autofocus	No	—
Vertical lens shift	None	None
Horizontal lens shift	None	None
Vertical keystone	30°	5°
Horizontal keystone	30°	5°
Auto keystone	No	—
Corner correction	—	4-corner
Grid warp	Yes	—
Interchangeable lens	—	No
Inputs & control
HDMI inputs	2 × HDMI	2 × HDMI 2.0 (HDCP 2.2)
HDMI inputs (count)	2Derived	2Derived
Newest HDMI version	—	HDMI 2.0Derived
Other video inputs	VGA	VGA, + Composite, + HDBaseT
Max input resolution	DCI 4K	4K UHD
Audio inputs	3.5 mm, RCA	3.5 mm, RCA
USB media playback	Yes	—
Control ports	RS-232	RS-232, + 12 V trigger
Control-system drivers	Crestron	Crestron, + AMX
Horizontal scan	—	15–102 kHz
Vertical scan	—	23–120 Hz
Smart platform
Wi-Fi	Wi-Fi 5	—
Ethernet	Yes	Yes
Casting	Miracast	—
Audio
Speaker power	16 W	20 W
Speakers	—	2
Layout	Mono	Stereo
Audio outputs	3.5 mm	3.5 mm
HDMI audio return	NoneDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)	325 × 299 × 90 mm	492 × 387 × 157 mm
Weight	4,200 g	9,900 g
Orientations	Table, Ceiling, Rear, + Portrait, + 360°	Table, Ceiling, Rear
Ceiling mount	9 × M4, 9 mm screws	M4, 12.8–15.8 mm screws
Dust filter	Replaceable	—
Environment & power
Operating temperature	0–40°C	0–40°C
Operating humidity	20–80%RH	10–90%RH
Altitude	3,048 m · high-altitude mode	3,000 m · high-altitude mode
Power draw	Max 272 W · Normal 272 W · Eco 208 W	504 W
Standby	0.5 W	Up to 0.5 W
Networked standby	2 W	—
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Noise
Fan noise	Normal 37 dB(A) · Eco 27 dB(A)	—
Safety & compliance
Laser class	Class 1	Class 1
Risk group	RG2	—
Marks	FCC, + UL	FCC
Support & ownership
Warranty	🇺🇸 US 3 yr · 🇨🇦 CA 3 yr	3 yr
User manual	https://files.support.epson.com/docid/cpd6/cpd63079.pdf	https://www.viewsonicglobal.com/public/products_download/user_guide/Projector/LS831WU/LS831WU_UG_ENG.pdf
In the box
In the box	Power cord, Remote, + Remote batteries, + HDMI cable	Power cord, Remote, + Quick start guide, + VGA cable
Remote	—	IR