BenQ LK835ST – 4K Short Throw Laser Projector for Golf Simulators
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The BenQ LK835ST is a 4K UHD laser projector designed for flexible golf simulator installations. It combines 4,000 ANSI lumens, a 0.69–0.83 short throw ratio, motorised 1.2× zoom and focus, Auto Screen Fit and flexible image correction for permanent indoor golf setups.
⛳ Golf Simulator Performance
- 4K UHD (3840 × 2160) native resolution
- 4,000 ANSI lumens laser light source
- Dedicated Golf picture mode
- 95% Rec.709 coverage
- Input lag: 33.4 ms at 1080p/60Hz
- Auto Screen Fit, Corner Fit and curved-screen warping
- IP5X sealed engine for dust protection
🔍 Motorised Zoom for Flexible Positioning
The 0.69–0.83 throw ratio and 1.2× motorised zoom provide a useful range of mounting positions. For a 4-metre-wide 16:9 image, the theoretical lens-to-screen distance is approximately 2.76–3.32 metres.
🎯 Image Adjustment & Simulator Integration
The LK835ST supports 3D Keystone with vertical ±30°, horizontal ±30° and rotation ±30°, together with Corner Fit and curved-screen warping. Its fixed projection offset is 102.5%, so mounting height should be planned around the screen position.
⚙️ BenQ LK835ST Technical Specifications
| Projection system | DLP |
|---|---|
| Resolution | 4K UHD (3840 × 2160) |
| Brightness | 4,000 ANSI lumens |
| Contrast ratio | 3,000,000:1 FOFO |
| Light source | Laser |
| Throw ratio | 0.69–0.83 |
| Optical adjustments | Motorised 1.2× zoom; motorised focus |
| Native aspect ratio | 16:9 |
| Projection size | 60–120 inches; adjustable up to 240 inches according to the BenQ datasheet |
| Projection offset | 102.5% |
| Keystone | 3D: vertical ±30°, horizontal ±30°, rotation ±30° |
| Colour coverage | 95% Rec.709 |
| Picture mode | Golf mode available |
| Input lag | 33.4 ms at 1080p/60Hz |
| Rated laser life | 20,000 hours normal / 30,000 hours eco |
| Projector weight | 3.4 kg |
| Dimensions (W × H × D) | 303.5 × 112.4 × 234.5 mm |
| Noise (normal / eco) | 34 / 28 dBA |
| Built-in speaker | 10 W |
| Connectivity | 2 × HDMI 2.0b (HDCP 2.2), 2 × USB-A, 1 × USB-C with DisplayPort and 5V/1A power delivery, RS-232 |
| HDMI audio return | eARC, 7.1 channel |
| Power supply | AC 100–240 V, 50/60 Hz |
| Typical power consumption | 192 W at 110 V |
| Standby power consumption | <0.5 W |
| Operating temperature | 0–40 °C |
BenQ’s current product page and official datasheet publish slightly different figures for acoustic noise and light-source life. The values shown here for those two fields follow the official BenQ datasheet.
📐 Planning Your Indoor Golf Installation
Projection distances are planning estimates for a 16:9 image before digital correction. Check image dimensions, impact-screen aspect ratio, mounting position and safe swing clearance before installation. Digital correction can reduce the usable image area.
❓ Frequently Asked Questions
Does the LK835ST have a Golf picture mode?
Yes. BenQ lists a dedicated Golf picture mode.
Does it support 4K?
Yes. The native resolution is 4K UHD (3840 × 2160).
Does it have motorised zoom and focus?
Yes. BenQ lists 1.2× motorised zoom and motorised focus.
What is the throw ratio?
The throw ratio is 0.69–0.83.
What is the projection offset?
BenQ lists a fixed projection offset of 102.5%.
Is Wi-Fi included?
Wireless projection uses an optional compatible Wi-Fi dongle.
Is a ceiling mount included?
No. The ceiling mount / projector support is not included and must be purchased separately.
Does the projector replace a golf simulator?
No. It displays the simulator image. The impact screen, launch monitor, computer and simulation software are separate components.
📦 What’s Included
- BenQ LK835ST projector
- Remote control with battery
- Regional 1.8 m power cord
- Quick Start Guide
- Warranty card where supplied in your region
🔧 Optional Accessories
Compatible Wi-Fi dongle and universal ceiling mount are optional accessories. The ceiling mount / projector support is not included and must be purchased separately. Impact screen, launch monitor, computer, simulation software and mounting hardware are also not included.