BenQ LK830ST Short throw projector 4000 ANSI lumens DLP UHD 4K (3840x2160) 3D Black

SKU
9H.JT977.75E
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In Stock: 1 available
LK830ST 4000 ANSI Lumen 4K Laser Simulation Projector
  • 0.5 short throw ratio for large image from short distance
  • One-click preset for multi-projector blending to minimise setup effort
  • IP6X sealed engine with optional filter for optimal dust resistance and protection
  • Supports OTA firmware updates to keep all devices up to date without physical access
  • Laser high visual 4000 ANSI lumen brightness
More Information
SKU 9H.JT977.75E
EAN 4718755096273
Manufacturer Benq
Availability In Stock
Installer Ready

Optimised for Multi-Projector Projects from Fast Setup to Long Term Performance


Blending Ready Mode
One-click preset for multi-projector blending to minimise setup effort

Brilliant Visuals with Stable Colour and Performance
The LK830ST delivers brilliant image clarity and stable performance across every detail—from vivid Rec.709 colour and high contrast to 4000-lumen brightness (ANSI) and 20,000-hour laser life.

BenQ WBA for Seamless Multi-Projector White Calibration
BenQ’s factory white balance adjustment (WBA) reduce variables between images projected from different projectors, significantly reducing manual calibration effort. It can save up to a full day of setup time in large-scale installations while ensuring seamless multi-projector alignment for edge blending.

Full flexibility for ceilings, walls and floors

360° and Portrait Projection for Full Installation Freedom

Ready for Dusty Venues

IP6X Sealed Engine Design for Dust-Prone Environments
Shields the projector’s optical engine from dust intrusion, ensuring long-term stability and reliable performance in harsh, dust-prone environments such as exhibition halls, factory spaces, and training centers.

Optional Filter for Extra Protection
Provides added protection in dusty environments and helps extend projector life.

Auto Reset Mechanism with Built-in Timer
Automatically tracks filter usage and resets the timer when a new filter is installed, without any manual setup.

IT Takes Control

Streamlined Device Management


Remote Monitoring and Diagnostics
Easily track projector status and diagnose issues remotely, eliminating frequent on-site visits.


Firmware Management Over Network
Easily update all projectors via LAN to keep firmware current without physical access.


Reliable Performance, Less Maintenance
Ensure long-term stability, freeing SI teams to focus on creative installations rather than routine upkeep.
Projector
Number of colours1.07 billion colours
Projector native resolutionUHD 4K (3840x2160)
Native aspect ratio16:9
Contrast ratio (typical)3000000:1
Zoom capabilityYes
Vertical scan range23 - 240 Hz
Horizontal scan range15 - 135 kHz
Keystone correction, vertical30°
Keystone correction, horizontal30°
Projection technologyDLP
Projector brightness4000 ANSI lumens
Zoom typeFixed
Smart projectorNo
Lamps
Light source typeLaser
Service life of light source20000 h
Service life of light source (economic mode)30000 h
Light source
Light source typeLaser
Service life of light source20000 h
Service life of light source (economic mode)30000 h
Lens system
Zoom capabilityYes
Throw ratio0.496
Offset114%
Zoom typeFixed
Scanning frequency
Vertical scan range23 - 240 Hz
Horizontal scan range15 - 135 kHz
Video
Full HDYes
3DYes
Audio
Built-in speaker(s)Yes
Number of built-in speakers1
RMS rated power15 W
Ports & interfaces
HDMI ports quantity2
Ethernet LAN (RJ-45) ports1
Serial interface typeRS-232
PC Audio outYes
USB 2.0 Type-A ports quantity2
Network
Ethernet LANYes
Wi-FiNo
Ethernet LAN (RJ-45) ports1
Sound emission
Noise level30 dB
Noise level (economic mode)24 dB
Technical details
Product colourBlack
Quantity per pack1 pc(s)
Performance
Market positioningBusiness
Vertical scan range23 - 240 Hz
Horizontal scan range15 - 135 kHz
Noise level30 dB
Noise level (economic mode)24 dB
Features
InteractiveNo
Noise level30 dB
Noise level (economic mode)24 dB
International Protection (IP) codeIP6X
Multimedia
Built-in speaker(s)Yes
Number of built-in speakers1
RMS rated power15 W
Design
Market positioningBusiness
Product typeShort throw projector
Product colourBlack
PlacementCeiling, Desktop
Display
Built-in displayNo
Power
AC input voltage100 - 240 V
AC input frequency50/60 Hz
Power sourceAC
Power consumption (typical)230 W
Power consumption (standby)0.5 W
Operational conditions
Operating temperature (T-T)0 - 40 °C
Weight & dimensions
Weight3.6 kg
Width279.2 mm
Depth229.3 mm
Height120.5 mm
Packaging content
Remote control includedYes
Mounting brackets includedYes
ManualYes
Cables includedPower
Logistics data
Quantity per pack1 pc(s)

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SKU
9H.JT977.75E
9H.JKT77.24E
9H.JM277.15E
9H.JNN77.15E
9H.JS977.18E
LS711HD
Manufacturer
Benq
Benq
Benq
Benq
Benq
Viewsonic
Contrast ratio (typical)
N/A
10000:1
N/A
N/A
N/A
N/A
Projection technology
DLP
DLP
DLP
DLP
DLP
N/A
Projector brightness
Over 4000 ansi Lumens
3 - 4000 Lumens
Over 4000 ansi Lumens
Over 4000 ansi Lumens
3 - 4000 Lumens
Over 4000 ansi Lumens
Noise level
20dB to 30dB
30dB to 40dB
30dB to 40dB
N/A
30dB to 40dB
30dB to 40dB
DVI port
N/A
N
N
N
N
N
VGA (D-Sub) ports quantity
N/A
2
1
2
0
0
Component video (YPbPr/YCbCr) in
N/A
N/A
up to 1
N/A
up to 1
up to 1
HDMI ports quantity
2
2
2
2
3
2
Projector native resolution
UHD 4K (3840x2160)
1080p (1920x1080)
WUXGA (1920x1200)
WUXGA (1920x1200)
UHD 4K (3840x2160)
1080p (1920x1080)
Light source type
Laser
Lamp
Laser
Laser
LED
Laser
Weight
3000g to 4000g
4000g to 6000g
6000g to 8000g
6000g to 8000g
6000g to 8000g
2000g to 3000g
Native aspect ratio
16:9
16:9
16:10
16:10
16:9
16:9
Product type
Short throw projector
Ultra short throw projector
Standard throw projector
Standard throw projector
N/A
Short throw projector