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BenQ LK830ST Short throw projector 4000 ANSI lumens DLP UHD 4K (3840x2160) 3D Black
SKU
9H.JT977.75E
- 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
| 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.
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 colours | 1.07 billion colours |
| Projector native resolution | UHD 4K (3840x2160) |
| Native aspect ratio | 16:9 |
| Contrast ratio (typical) | 3000000:1 |
| Zoom capability | Yes |
| Vertical scan range | 23 - 240 Hz |
| Horizontal scan range | 15 - 135 kHz |
| Keystone correction, vertical | 30° |
| Keystone correction, horizontal | 30° |
| Projection technology | DLP |
| Projector brightness | 4000 ANSI lumens |
| Zoom type | Fixed |
| Smart projector | No |
| Lamps | |
| Light source type | Laser |
| Service life of light source | 20000 h |
| Service life of light source (economic mode) | 30000 h |
| Light source | |
| Light source type | Laser |
| Service life of light source | 20000 h |
| Service life of light source (economic mode) | 30000 h |
| Lens system | |
| Zoom capability | Yes |
| Throw ratio | 0.496 |
| Offset | 114% |
| Zoom type | Fixed |
| Scanning frequency | |
| Vertical scan range | 23 - 240 Hz |
| Horizontal scan range | 15 - 135 kHz |
| Video | |
| Full HD | Yes |
| 3D | Yes |
| Audio | |
| Built-in speaker(s) | Yes |
| Number of built-in speakers | 1 |
| RMS rated power | 15 W |
| Ports & interfaces | |
| HDMI ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| Serial interface type | RS-232 |
| PC Audio out | Yes |
| USB 2.0 Type-A ports quantity | 2 |
| Network | |
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Ethernet LAN (RJ-45) ports | 1 |
| Sound emission | |
| Noise level | 30 dB |
| Noise level (economic mode) | 24 dB |
| Technical details | |
|---|---|
| Product colour | Black |
| Quantity per pack | 1 pc(s) |
| Performance | |
| Market positioning | Business |
| Vertical scan range | 23 - 240 Hz |
| Horizontal scan range | 15 - 135 kHz |
| Noise level | 30 dB |
| Noise level (economic mode) | 24 dB |
| Features | |
| Interactive | No |
| Noise level | 30 dB |
| Noise level (economic mode) | 24 dB |
| International Protection (IP) code | IP6X |
| Multimedia | |
| Built-in speaker(s) | Yes |
| Number of built-in speakers | 1 |
| RMS rated power | 15 W |
| Design | |
| Market positioning | Business |
| Product type | Short throw projector |
| Product colour | Black |
| Placement | Ceiling, Desktop |
| Display | |
| Built-in display | No |
| Power | |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Power source | AC |
| Power consumption (typical) | 230 W |
| Power consumption (standby) | 0.5 W |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 40 °C |
| Weight & dimensions | |
| Weight | 3.6 kg |
| Width | 279.2 mm |
| Depth | 229.3 mm |
| Height | 120.5 mm |
| Packaging content | |
| Remote control included | Yes |
| Mounting brackets included | Yes |
| Manual | Yes |
| Cables included | Power |
| Logistics data | |
| Quantity per pack | 1 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
|





