BenQ LK830ST vs Epson PowerLite L570U

BenQ LK830ST is $572 cheaper and lighter. Epson PowerLite L570U is sharper.

	BenQ LK830ST$2,599 · Amazon Buy	Epson PowerLite L570U$3,171 · Amazon Buy

Key differences
White light output
White light output	4,000 lm ANSI	5,200 lm ISO
Native resolution
Native resolution	1080p (1920 × 1080)	WUXGA (1920 × 1200)
Throw ratio
Throw ratio	0.5:1	1.35–2.2:1
Lowest input lag
Lowest input lag	4.2 msDerived	—
Light source
Light source	Laser (phosphor)	—
Fan noise
Fan noise	Normal 30 dB(A) · Eco 24 dB(A)	Normal 31 dB(A) · Eco 23 dB(A)
MSRP
MSRP	$2,499	$3,496
Best price
Best price	$2,599	$3,171
Room fit80″100″120″150″
Distance to screen
Distance to screen	1.1 m	2.9–4.7 m
Picture
White light output
White light output	4,000 lm ANSI	5,200 lm ISO
Colour light output
Colour light output	—	5,200 lm
Brightness uniformity
Brightness uniformity	—	86%
Brightness by mode
Brightness by mode	—	Normal 5,200 lm · Eco 3,640 lm
Eco brightness
Eco brightness	—	70%Derived
Imaging technology
Imaging technology	DLP	3LCD
Chip / panel diagonal
Chip / panel diagonal	0.65 in	0.67 in
Native resolution
Native resolution	1080p (1920 × 1080)	WUXGA (1920 × 1200)
Native aspect
Native aspect	16:9Derived	16:10Derived
Pixel shift
Pixel shift	XPR 4-way	Yes (scheme not stated)
Addressable resolution
Addressable resolution	4K UHD (3840 × 2160)	—
Dynamic contrast
Dynamic contrast	3,000,000:1	Up to 2,500,000:1
Dynamic contrast method
Dynamic contrast method	—	Light-source dimming
Colour gamut
Colour gamut	Rec. 709 93% coverage	—
Colour bit depth (per channel)
Colour bit depth (per channel)	10 bit	10 bit
Gamma / EOTF presets
Gamma / EOTF presets	2.2, 2.4, 2.6	—
HDR formats
HDR formats	HDR10, HLG	HDR10, HLG
Tone mapping
Tone mapping	Adjustable	—
Colour management (CMS)
Colour management (CMS)	6-axis	6-axis
Picture mode memories
Picture mode memories	2	10
Auto-calibration
Auto-calibration	—	Sensor supported
3D
3D	Yes	—
3D formats
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential	—
Light source
Light source
Light source	Laser (phosphor)	—
Emitter
Emitter	—	Blue laser + phosphor
Light-source life
Light-source life	20,000 h normal · 30,000 h eco	20,000 h normal · 30,000 h eco
Life defined as
Life defined as	—	50% brightness
Light output control
Light output control	Continuous	—
Constant brightness mode
Constant brightness mode	—	Yes
Warm-up time
Warm-up time	—	30 s
Cool-down time
Cool-down time	—	0 s
Optics
Throw ratio
Throw ratio	0.5:1	1.35–2.2:1
Image size
Image size	70–300 in	50–500 in
Projection offset
Projection offset	114%	—
Zoom
Zoom	Digital	Optical
Zoom ratio
Zoom ratio	—	1.63×Derived
Focal length
Focal length	17.51 mm	20–31.8 mm
Aperture (f-number)
Aperture (f-number)	2.8	1.5–1.7
Focus
Focus	Manual	Manual
Autofocus
Autofocus	—	No
Vertical lens shift
Vertical lens shift	None	±50%
Horizontal lens shift
Horizontal lens shift	None	±20%
Motorised lens shift
Motorised lens shift	—	No
Vertical keystone
Vertical keystone	30°	30°
Horizontal keystone
Horizontal keystone	30°	30°
Auto keystone
Auto keystone	Yes	—
Corner correction
Corner correction	4-corner	—
Grid warp
Grid warp	Yes	Yes
Interchangeable lens
Interchangeable lens	No	—
Motion & gaming
Max input refresh
Max input refresh	1080p: 120 Hz · 240 Hz · 4K UHD: 60 Hz	—
Input lag
Input lag	1080p: 60 Hz 16.7 ms · 120 Hz 8.3 ms · 240 Hz 4.2 ms · 4K UHD: 60 Hz 16.7 ms	—
Inputs & control
HDMI inputs
HDMI inputs	2 × HDMI 2.0 (HDCP 2.2)	2 × HDMI (HDCP 2.3)
Other video inputs
Other video inputs	—	HDBaseT
Max input resolution
Max input resolution	4K UHD	DCI 4K
USB media playback
USB media playback	—	Yes
Control ports
Control ports	RS-232	RS-232
Control-system drivers
Control-system drivers	AMX	Control4, Crestron
Horizontal scan
Horizontal scan	15–135 kHz	26–135 kHz
Vertical scan
Vertical scan	23–240 Hz	23.98–60 Hz
Smart platform
Wi-Fi
Wi-Fi	None	—
Ethernet
Ethernet	Yes	Yes
Audio
Speaker power
Speaker power	15 W	10 W
Speakers
Speakers	1	1
Layout
Layout	Mono	Mono
Audio outputs
Audio outputs	3.5 mm	3.5 mm
HDMI audio return
HDMI audio return	NoneDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)
Dimensions (W × D × H)	279 × 229 × 121 mm	440 × 304 × 122 mm
Weight
Weight	3,600 g	8,300 g
Colours
Colours	Black	—
Orientations
Orientations	Ceiling, Rear	Table, Ceiling, Rear, 360°
Ceiling mount
Ceiling mount	M4	4 × M4, 9 mm screws, 100 × 100 mm spacing
Dust filter
Dust filter	—	Replaceable
Ingress protection
Ingress protection	IP6X (light engine)	—
Sealed optical engine
Sealed optical engine	Yes	—
Environment & power
Operating temperature
Operating temperature	0–40°C	0–45°C
Operating humidity
Operating humidity	10–80%RH	20–80%RH
Altitude
Altitude	3,000 m · high-altitude mode	3,048 m · high-altitude mode
Power draw
Power draw	Max 250 W · Normal 230 W · Eco 130 W	Normal 323 W · Eco 250 W
Standby
Standby	Up to 0.5 W	0.5 W
Networked standby
Networked standby	Up to 2 W	2 W
Power supply
Power supply	External adapter	—
Mains input
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
DC input
DC input	24 V	—
Fan noise
Fan noise	Normal 30 dB(A) · Eco 24 dB(A)	Normal 31 dB(A) · Eco 23 dB(A)
Safety & support
Laser class
Laser class	Class 1	Class 1
Risk group
Risk group	RG2	RG2
Marks
Marks	—	FCC, UL
Warranty
Warranty	3 yr	🇺🇸 US 3 yr · 🇨🇦 CA 3 yr
User manual
User manual	https://www.audiogeneral.com/BenQ/LK830ST/LK830ST_LH830ST_LW830ST_User_Manual.pdf	https://files.support.epson.com/docid/cpd6/cpd63066.pdf
In the box
In the box
In the box	Power cord, Power adapter, Remote, Remote batteries, Quick start guide, Warranty card	Power cord, Remote, Remote batteries, Quick start guide, HDMI cable, Lens cap
Remote
Remote	Backlit	IR

BenQ LK830ST$2,599 · Amazon

Buy

Epson PowerLite L570U$3,171 · Amazon

Buy