ProjectorDB

BenQ LK830ST vs InFocus IN1048SL

BenQ LK830ST is better for gaming and lighter. InFocus IN1048SL is $677.81 cheaper.

BenQ LK830ST$2,599 · Amazon
Buy
InFocus IN1048SL$1,921.19 · Amazon
Buy
Key differences
White light output
4,000 lm ANSI6,000 lm ISO
Throw ratio
0.5:11.4–2.24:1
Lowest input lag
4.2 msDerived—
HDR formats
HDR10, HLG—
Light source
Laser (phosphor)—
Fan noise
Normal 30 dB(A) · Eco 24 dB(A)Normal 30 dB(A) · Eco 28 dB(A)
MSRP
$2,499—
Best price
$2,599$1,921.19
Room fit
Distance to screen
1.1 m3.1–5.0 m
Picture
White light output
4,000 lm ANSI6,000 lm ISO
Brightness uniformity
—85%
Imaging technology
DLPDLP
Chip / panel diagonal
0.65 in0.65 in
Native resolution
1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Pixel shift
XPR 4-way—
Addressable resolution
4K UHD (3840 × 2160)—
Dynamic contrast
3,000,000:12,000,000:1
Colour gamut
Rec. 709 93% coverage—
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
2.2, 2.4, 2.62.2, 2.4, 2.6
HDR formats
HDR10, HLG—
Tone mapping
Adjustable—
Colour management (CMS)
6-axis6-axis
Picture mode memories
2—
3D
YesYes
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequentialSide-by-side, Top-bottom, Frame sequential
3D glasses sync
—DLP-Link
Light source
Light source
Laser (phosphor)—
Emitter
—Blue laser + phosphor
Light engine
—Quantum Laser
Light-source life
20,000 h normal · 30,000 h ecoUp to 30,000 h
Light output control
ContinuousSteps
Optics
Throw ratio
0.5:11.4–2.24:1
Image size
70–300 in20–300 in
Projection offset
114%103%
Zoom
DigitalOptical
Zoom ratio
—1.6×Derived
Focal length
17.51 mm20.91–32.62 mm
Aperture (f-number)
2.8—
Focus
ManualManual
Autofocus
—No
Vertical lens shift
None0–15%
Horizontal lens shift
None—
Motorised lens shift
—No
Vertical keystone
30°30°
Horizontal keystone
30°30°
Auto keystone
YesYes
Corner correction
4-corner4-corner
Grid warp
Yes—
Interchangeable lens
No—
Motion & gaming
Max input refresh
1080p: 120 Hz · 240 Hz · 4K UHD: 60 Hz1080p: 120 Hz · 4K UHD: 60 Hz
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
2 × HDMI 2.0 (HDCP 2.2)HDMI 2.0 · HDMI 1.4
Other video inputs
—VGA, HDBaseT
Max input resolution
4K UHDDCI 4K
Control ports
RS-232RS-232
Control-system drivers
AMX—
Horizontal scan
15–135 kHz15.38–91.15 kHz
Vertical scan
23–240 Hz24–120 Hz
Smart platform
Wi-Fi
None—
Ethernet
YesYes
Audio
Speaker power
15 W10 W
Speakers
11
Layout
Mono—
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
279 × 229 × 121 mm374 × 302 × 117 mm
Weight
3,600 g5,500 g
Colours
Black—
Orientations
Ceiling, RearTable, Ceiling, Rear
Ceiling mount
M4—
Dust filter
—None
Ingress protection
IP6X (light engine)—
Sealed optical engine
Yes—
Environment & power
Operating temperature
0–40°C5–40°C
Operating humidity
10–80%RH10–85%RH
Altitude
3,000 m · high-altitude mode3,048 m · high-altitude mode
Power draw
Max 250 W · Normal 230 W · Eco 130 WMax 341 W · Eco 190 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
Up to 2 WUp to 2 W
Power supply
External adapter—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
DC input
24 V—
Fan noise
Normal 30 dB(A) · Eco 24 dB(A)Normal 30 dB(A) · Eco 28 dB(A)
Safety & support
Laser class
Class 1Class 1
Risk group
RG2RG2
Marks
—CE, FCC, CCC
Warranty
3 yr5 yr or 20,000 h
User manual
https://www.audiogeneral.com/BenQ/LK830ST/LK830ST_LH830ST_LW830ST_User_Manual.pdfhttps://cdn.infocus.com/2026/06/UG_Authentic-I_IN1048SL_49SL_EN-v2.pdf
In the box
In the box
Power cord, Power adapter, Remote, Remote batteries, Quick start guide, Warranty cardPower cord, Remote, Quick start guide, VGA cable, Lens cap
Remote
BacklitIR
BenQ LK830ST$2,599 · Amazon
Buy
InFocus IN1048SL$1,921.19 · Amazon
Buy