BenQ LK830ST 4K Laser Short Throw Projector 4000 Lumens 0.5 Ratio
The BenQ LK830ST is a high-performance 4K UHD laser projector designed for simulation, golf, house mapping, and professional installations. With 4000 ANSI lumens of brightness, a 0.496 short throw ratio, and 20,000-hour laser life, this projector delivers brilliant image clarity and stable performance across every detail. Whether you're creating immersive golf simulations, projecting architectural mapping, or setting up professional training environments, the LK830ST combines vivid 93% Rec.709 color accuracy, true 4K UHD resolution (3840 × 2160), and advanced installation features to deliver professional-grade visuals with unmatched clarity and color fidelity.
Why You'll Love the BenQ LK830ST
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True 4K UHD Resolution: 8.3 million pixels reveal breathtaking clarity and vivid details for golf simulation, house mapping, and immersive content
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Ultra-Short Throw Design: 0.5 throw ratio projects large images from incredibly close distances, ideal for tight spaces and golf simulator bays
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Powerful 4000 ANSI Lumens: Delivers vibrant, crystal-clear images even in well-lit environments with high contrast and deep blacks
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20,000-Hour Laser Life: Long-lasting laser light source with 30,000 hours in ECO mode for minimal maintenance and lower total cost of ownership
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IP6X Sealed Dustproof Engine: Certified IP6X dust protection with optional filter for harsh environments - no regular filter cleaning required
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Low Input Lag Gaming Performance: 4.2ms at 1080p 240Hz and 16.7ms at 4K 60Hz for responsive golf simulation and gaming
Immersive 4K Picture Quality for Simulation and Entertainment
The LK830ST delivers true 4K UHD resolution (3840 × 2160) with 8.3 million pixels, capturing the subtle textures of golf fairways, bunkers, and architectural details with lifelike definition. With 93% Rec.709 color coverage, the projector ensures accurate and natural color reproduction for realistic turf tones, natural skies, and true-to-life course realism. The 3,000,000:1 contrast ratio produces powerful, detailed images with sharp contrast and vivid colors in both well-lit and dark environments.
Perfect for Golf Simulation and Short Throw Applications
Designed specifically for home golf simulation and short-distance projection, the LK830ST's 0.496 short throw ratio allows you to fill a 120-inch screen from just 4.3 feet away. This makes it perfect for basements, garages, and spare bedrooms with limited depth. The 114% projection offset and fixed precision lens deliver crisp details to the edges of even the largest impact screens, while the short-throw design maximizes space and is ideal for floor or low ceiling mounting without casting player shadows.
Advanced Picture Modes and HDR Support
Experience stunning visuals with advanced picture modes including Simulation, HDR10, HLG, 3D, Bright, Presentation, sRGB, and two customizable User modes. The dedicated Simulation Mode provides optimized color calibration for golf and sports simulation software, while HDR10 and HLG support deliver enhanced contrast and lifelike colors for movies and live sports content. Full HD 3D compatibility with DLP Link technology brings immersive depth to compatible content.
Professional Installation Features
The LK830ST offers advanced installation tools to create the perfect image in minimal time. 2D Auto Keystone (vertical ±30° and horizontal ±30°), Corner Fit, and Screen Fill functions simplify setup and alignment. BenQ's factory White Balance Adjustment (WBA) reduces variables between images projected from different projectors, significantly reducing manual calibration effort and saving up to a full day of setup time in large-scale installations with edge blending capabilities.
IP6X Dustproof Protection for Long-Term Reliability
The LK830ST features a certified IP6X dustproof sealed laser engine, shielding the projector's optical engine from dust intrusion and ensuring long-term stability and reliable performance in harsh, dust-prone environments such as exhibition halls, factory spaces, training centers, and outdoor house mapping applications. An optional anti-dust filter provides added protection in extreme dusty environments, with automatic filter tracking that resets the timer when a new filter is installed.
Low Input Lag for Gaming and Real-Time Simulation
Stay responsive with low input lag performance: 4.2ms at 1080p 240Hz, 8.3ms at 1080p 120Hz, and 16.7ms at 4K 60Hz. This ensures smooth, lag-free performance for golf simulation software, real-time gaming, and interactive applications. The projector supports vertical scan rates from 23 to 240Hz and horizontal frequencies from 15 to 135 KHz for maximum compatibility with gaming PCs, consoles, and simulation systems.
Universal Connectivity
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HDMI 2.0b (HDCP 2.2) × 2: Dual high-speed HDMI ports for 4K 60Hz sources including gaming consoles, streaming devices, and PCs
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USB Type-A × 2: For optional wireless dongle and service/firmware updates
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LAN (RJ-45): High-speed network connection for LAN control and Over-the-Air (OTA) firmware updates
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RS-232 (DB-9pin): Serial control for professional AV control systems and remote operations
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Audio Out (3.5mm Mini Jack): Connect to external soundbars or audio systems for enhanced sound
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Built-in 15W Mono Speaker: Integrated speaker provides clear audio for golf simulation and presentations
Flexible Installation and 24/7 Operation
The LK830ST supports 360° projection and portrait mode for total installation freedom, making it suitable for creative applications including house mapping, themed entertainment, and vertical projection. Certified for 24/7 continuous operation, the projector is ideal for museums, exhibitions, retail displays, and training centers. Over-the-Air (OTA) firmware updates keep all devices up to date without requiring physical access, perfect for ceiling-mounted or hard-to-reach installations.
Quiet Operation
The LK830ST operates quietly with 30dB fan noise in Normal mode and just 24dB in ECO mode, ensuring the projector won't distract from your golf game, movie experience, or presentation. The sealed laser design eliminates the need for regular filter maintenance in most environments.
What's in the Box
- BenQ LK830ST Laser Projector
- Remote Control (RCA011) with AAA Batteries × 2
- Power Cord (by region, 1.8M)
- Quick Start Guide
- Warranty Card (by region)
- Regulatory Statements
Full Specifications
Display
| Brightness |
4000 ANSI lumens |
| Native Resolution |
4K UHD (3840 × 2160) |
| Native Aspect Ratio |
16:9 |
| Contrast Ratio (FOFO) |
3,000,000:1 |
| Display Color |
30-bit (1.07 billion colors) |
| Rec.709 Coverage |
93% |
| Projection System |
DLP |
Light Source
| Light Source Type |
Laser |
| Light Source Life (Normal) |
20,000 hours |
| Light Source Life (ECO) |
30,000 hours |
Optical
| Throw Ratio |
0.496 (fixed) |
| Zoom Ratio |
Fixed |
| Lens |
F 2.8, f: 17.51mm |
| Projection Offset (Full-Height) |
114% |
Picture & Gaming
| Picture Modes |
Simulation, 3D, Bright, HDR10, HLG, Presentation, sRGB, User 1, User 2, Vivid |
| Input Lag (1080p 60Hz) |
16.7ms |
| Input Lag (4K 60Hz) |
16.7ms |
| Input Lag (1080p 120Hz) |
8.3ms |
| Input Lag (1080p 240Hz) |
4.2ms |
| 3D Ready |
Yes (DLP Link) |
Keystone Adjustment
| Keystone Type |
2D Auto Keystone |
| Vertical Keystone |
±30 degrees (Auto) |
| Horizontal Keystone |
±30 degrees (Auto) |
| Corner Fit |
Yes |
| Screen Fill |
Yes |
Audio
| Speaker |
15W Mono |
| Audio Out |
3.5mm Mini Jack |
I/O Interfaces
| HDMI |
HDMI 2.0b (HDCP 2.2) × 2 |
| USB Type-A |
2 ports |
| LAN |
RJ-45 × 1 |
| RS-232 |
DB-9pin × 1 |
Power & Environment
| Power Supply |
AC 100 to 240V, 50/60Hz |
| Typical Power Consumption |
230W @110VAC |
| Stand-by Power Consumption |
<0.5W |
| Network Stand-by Power |
<2W |
| Acoustic Noise (Normal) |
30dB |
| Acoustic Noise (ECO) |
24dB |
| Operating Temperature |
0~40°C |
| 24/7 Operation |
Yes |
Physical
| Dimensions (W × H × D) |
279.2 × 120.5 × 229.3mm |
| Dimensions (Inches) |
10.99 × 4.74 × 9.03 inches |
| Net Weight |
3.6kg ± 100g (7.93 lbs ± 0.22 lbs) |
Advanced Features
| Dust Protection |
IP6X Sealed Engine |
| Optional Filter |
Yes (sold separately) |
| White Balance Adjustment |
Factory calibrated |
| Edge Blending |
Yes (multi-projector support) |
| Firmware Updates |
USB and Over-the-Air (OTA) |
| LAN Control |
Yes |
| 360° Projection |
Yes |
| Portrait Mode |
Yes |
Warranty
| Warranty Period |
3 years (no time limit on laser, imaging, or optical hardware) |
Specifications are sourced from the official manufacturer product page and may be updated.
