📽️ ProjectorDB

BenQ LK936ST vs Epson PowerLite L570U

BenQ LK936STBenQ LK936ST
$4,848
Epson PowerLite L570U
Epson PowerLite L570U
$3,197.79
Key differences
White light output5,100 lm ANSI5,200 lm ISO
Native resolution—WUXGA (1920 × 1200)
Throw ratio0.81–0.89:11.35–2.2:1
Lowest input lag16.7 msDerived—
Fan noiseNormal 40 dB(A) · Eco 33 dB(A)Normal 31 dB(A) · Eco 23 dB(A)
Price$4,848$3,197.79
Room fit
Distance to screen1.8–2.0 m2.9–4.7 m
Brightness
Rated brightness5,100 lmDerived5,200 lmDerived
White light output5,100 lm ANSI5,200 lm ISO
Colour light output—5,200 lm
Brightness uniformity—86%
Brightness by mode—Normal 5,200 lm · Eco 3,640 lm
Eco brightness—70%Derived
Display system
Imaging technologyDLP3LCD
Chip / panel diagonal—0.67 in
On-screen resolution4K UHD (3840 × 2160)DerivedWUXGA (1920 × 1200)Derived
Native resolution—WUXGA (1920 × 1200)
Native aspect16:9Derived16:10Derived
Pixel shift—Yes (scheme not stated)
Addressable resolution4K UHD (3840 × 2160)—
Contrast
Dynamic contrast3,000,000:1Up to 2,500,000:1
Dynamic contrast method—Light-source dimming
Colour
Colour gamutRec. 709 92% coverage—
Colour bit depth (per channel)10 bit10 bit
Gamma / EOTF presets2.2, 2.4, 2.6—
HDR
HDR formatsHDR10, HLGHDR10, HLG
Calibration
Colour management (CMS)6-axis6-axis
Picture mode memories—10
Auto-calibration—Sensor supported
3D
3DYes—
3D formatsFrame sequential—
3D glasses syncDLP-Link—
Light source
Light sourceLaser (phosphor)Laser (phosphor)Derived
Emitter—Blue laser + phosphor
Light-source life20,000 h20,000 h normal · 30,000 h eco
Life defined as—50% brightness
Constant brightness mode—Yes
Warm-up time30 s30 s
Cool-down time90 s0 s
Optics
Throw ratio0.81–0.89:11.35–2.2:1
Image size30–300 in50–500 in
ZoomOpticalOptical
Zoom ratio1.1×Derived1.63×Derived
Focal length8.6–9.4 mm20–31.8 mm
Aperture (f-number)1.83–1.861.5–1.7
FocusManualManual
AutofocusNoNo
Vertical lens shift±60%±50%
Horizontal lens shift±23%±20%
Motorised lens shiftNoNo
Vertical keystone40°30°
Horizontal keystone40°30°
Auto keystoneYes—
Grid warpYesYes
Motion & gaming
Input lag1080p: 60 Hz 16.7 ms · 4K UHD: 60 Hz 16.7 ms—
Lowest input lag16.7 msDerived—
Input lag at 4K 60 Hz16.7 msDerived—
Inputs & control
HDMI inputsHDMI 2.0 (HDCP 2.2) · HDMI 2.0 (eARC, HDCP 2.2)2 × HDMI (HDCP 2.3)
HDMI inputs (count)2Derived2Derived
Newest HDMI versionHDMI 2.0Derived—
Other video inputsHDBaseTHDBaseT
Max input resolution4K UHDDCI 4K
USB media playback—Yes
Control portsRS-232, + Wired IR, + 12 V triggerRS-232
Control-system driversCrestron+ Control4, Crestron
Horizontal scan15–135 kHz26–135 kHz
Vertical scan23–240 Hz23.98–60 Hz
Smart platform
EthernetYesYes
Audio
Speaker power10 W10 W
Speakers11
LayoutMonoMono
Audio formatsDolby Atmos—
Audio outputs3.5 mm, + Optical, + HDMI eARC3.5 mm
HDMI audio returneARCDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)416 × 351 × 166 mm440 × 304 × 122 mm
Weight7,000 g8,300 g
Orientations—Table, Ceiling, Rear, 360°
Ceiling mount—4 × M4, 9 mm screws, 100 × 100 mm spacing
Dust filterNoneReplaceable
Ingress protectionIP5X—
Sealed optical engineYes—
Environment & power
Operating temperature0–40°C0–45°C
Operating humidity10–90%RH20–80%RH
Altitude3,000 m · high-altitude mode3,048 m · high-altitude mode
Power drawMax 520 W · Normal 440 WNormal 323 W · Eco 250 W
StandbyUp to 0.5 W0.5 W
Networked standbyUp to 2 W2 W
Mains input100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Noise
Fan noiseNormal 40 dB(A) · Eco 33 dB(A)Normal 31 dB(A) · Eco 23 dB(A)
Safety & compliance
Laser classClass 1Class 1
Risk groupRG2RG2
Marks—FCC, UL
Support & ownership
Warranty3 yr🇺🇸 US 3 yr · 🇨🇦 CA 3 yr
User manualhttps://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20BUSINESS/UserManual/LK936ST/LK936ST_UM_EN_241101130452.pdfhttps://files.support.epson.com/docid/cpd6/cpd63066.pdf
In the box
In the boxPower cord, Remote, Remote batteries, Quick start guide, + User manual, + Warranty card, HDMI cablePower cord, Remote, Remote batteries, Quick start guide, HDMI cable, + Lens cap
Remote—IR