BenQ LK830ST 4K Short-Throw Laser Golf Simulator Projector
By BenQ
Give Dad the Ultimate Golf Gift.
Will This Projector Fit My Space?
4K UHD · Laser · Ultra-Short Throw
Big Image. Tight Room. 0.5 Throw.
The BenQ LK830ST is the compact 4K ultra-short-throw projector in BenQ’s dedicated golf-sim lineup. A 0.496:1 fixed lens fills a 300″ impact screen from roughly 10 ft 10 in, low-latency gaming response down to 4.2 ms, and the exclusive BenQ Golf Mode color tuning. Built for short bays, low ceilings, and floor-mount installs where the projector has to live close to the screen.
4K
UHD Resolution
3840 × 2160 native
4,000
ANSI Lumens
Screens up to 10 ft tall
0.496:1
Throw Ratio
Fixed ultra-short throw
4.2ms
Input Lag
1080p / 240 Hz
Why The LK830ST
Built For Compact Bays And Floor Mounts
The LK830ST is BenQ’s answer for the simulator builds where space is the constraint. A 0.5 throw ratio puts a giant image on a small footprint, and BenQ’s gaming-grade input lag plus Golf Mode color profile make it feel built for indoor golf.
True 4K UHD
3840 × 2160 native renders sharp fairway detail, readable simulator overlays, and clean tracer lines — the same 4K resolution as the higher-tier LK936ST.
4,000 ANSI Lumens
Drives impact screens up to roughly 10 ft tall with punchy, color-accurate images. Sized for residential sim rooms with controllable ambient light.
0.496:1 Fixed Ultra-Short Throw
The tightest throw ratio in BenQ’s 4K golf lineup. Project a 300″ image from about 10 ft 10 in. Built for compact rooms, low ceilings, and floor-mount installs.
Low Input Lag For Sim Play
16.7 ms at 4K/60 Hz, 8.3 ms at 1080p/120 Hz, and as low as 4.2 ms at 1080p/240 Hz. Menus, animations, and shot-result transitions stay snappy.
BlueCore Laser, 30K Hours
Laser DLP light engine rated up to 20,000 hours Normal and 30,000 hours Eco. No lamp replacements and consistent brightness across the rated life.
BenQ Golf Mode
Exclusive Golf Mode color profile corrects purple fringing common in golf software using calibrated blue and green tones. Natural skies and green grass without manual tweaking.
Screen Fill Aspect Switching
BenQ’s Screen Fill switches to 1:1, 5:4, 4:3, 16:10, or 16:9 native — one preset per sim screen aspect — with no distortion or stretched UI.
Dust-Protected Optical Engine
Sealed optical engine shields against dust intrusion, with an optional air filter for harsh environments. Built for garages, basements, and dust-prone bays.
Who Is It Best For?
- Compact residential simulator rooms
- Bays with low ceilings or short throw distance
- Floor-mount installs inside an enclosure base
- Sim builders who want sub-20 ms input lag
- Builders running GSPro, E6 Connect, TGC 2019, or Foresight FSX
- Garages and basements (dust-protected engine)
Ultra-Short Throw & Setup
The Compact Lens Built For Tight Bays
Placement Flexibility
The 0.496:1 fixed lens is the tightest throw in BenQ’s 4K golf-sim lineup. Mount close to the screen to eliminate shadows on the hitter and reclaim room depth for the launch monitor.
- Throw ratio: 0.496:1 (fixed, no zoom)
- 300″ image from ~10 ft 10 in
- Screen size range: ~70″ to 300″ diagonal
- Projection offset: 114% (full-height)
- Keystone: 2D, H/V ±30°
- Corner Fit + Digital Shrink & Shift to 75–80%
Installer Checklist
Fixed-lens ultra-short-throw projectors are unforgiving on alignment. Measure lens-to-screen (not mount-plate-to-screen) and confirm geometry before drilling anything.
- Confirm screen width and final aspect ratio
- Verify ceiling height or floor-mount clearance
- Use the ESG fitment tool for exact mounting distance
- Plan HDMI and power-brick runs to the mount
- Use Digital Shrink & Shift for fine adjustment
- Test image placement before permanent mounting
What Is The LK830ST
The Compact 4K Entry To BenQ’s Golf Sim Lineup
The LK830ST is the entry tier of BenQ’s purpose-built 4K golf-simulator projector lineup — tighter-throw, smaller-chassis, and floor-mount-friendly versus the prosumer AK700ST and high-output LK936ST. It uses a single-chip DLP engine with a true 4K UHD pixel array, a dust-protected BlueCore laser light source rated up to 30,000 hours in Eco mode, and a fixed 0.496:1 ultra-short-throw lens.
Placement range: with a 0.5 throw ratio, the LK830ST can fill a 300″ impact screen from approximately 10 ft 10 in away. The lens is fixed with no optical zoom, so distance is determined by image width. For the exact lens-to-screen distance based on your screen size and aspect ratio, run the numbers in the ESG projector fitment tool and throw calculator before mounting.
Mount notes: the LK830ST weighs 7.5 lbs and measures 11″ × 4.8″ × 9″ (279 × 121 × 229 mm). The short, low-profile chassis is well suited for floor-mount installs inside an enclosure base, ceiling mounts in low-clearance bays, and tight residential rooms. Native projection offset is 114%. Corner Fit and 2D keystone (H/V ±30°) plus Digital Shrink & Shift handle cleanup — no optical lens shift on this model.
Latency: BenQ rates the LK830ST at 16.7 ms input lag at 4K/60 Hz, 8.3 ms at 1080p/120 Hz, and as low as 4.2 ms at 1080p/240 Hz. That puts it in true gaming-projector territory — ideal for fast menu navigation, snappy shot animations, and competitive sim play on GSPro, TGC 2019, or FSX.
Simulator software: the LK830ST works with all major PC-based golf-sim platforms including GSPro, E6 Connect, TGC 2019, Awesome Golf, and Foresight FSX. Two HDMI 2.0 inputs let you keep the sim PC and a media source connected at the same time. BenQ’s Screen Fill feature switches the projector between 1:1, 5:4, 4:3, 16:10, and 16:9 native — one preset per sim screen aspect — with no image distortion.
Everything It Does
Spec-By-Spec Breakdown
Resolution & Color
4K UHD 3840 × 2160 single-chip DLP. Vivid Rec.709 color reproduction with factory White Balance Adjustment for stable color out of the box.
Throw & Projection
0.496:1 fixed ultra-short throw, no optical zoom. Projects up to 300″ from about 10 ft 10 in. Native projection offset 114%.
Brightness & Contrast
4,000 ANSI lumens with 3,000,000:1 dynamic contrast. Drives 10 ft-tall impact screens with punchy, color-accurate course detail.
Gaming-Grade Input Lag
16.7 ms at 4K/60 Hz, 16.7 ms at 1080p/60 Hz, 8.3 ms at 1080p/120 Hz, 4.2 ms at 1080p/240 Hz. Sub-20 ms across every common sim refresh rate.
BenQ Golf Mode + Screen Fill
Exclusive Golf Mode color profile plus Screen Fill aspect switching (1:1, 5:4, 4:3, 16:10, 16:9) to match any sim screen with zero distortion.
Geometry Tools
Corner Fit, 2D keystone H/V ±30°, Digital Shrink & Shift down to 75–80% of original image size for fine on-screen alignment.
Dust-Protected Engine
Sealed optical block shields the laser engine from dust intrusion. Optional air filter adds protection for harsh environments and tracks filter usage automatically.
Connectivity
2 × HDMI 2.0, 1 × USB-A (1.5 A service / power), 1 × USB-A (Wi-Fi dongle support), RJ45 LAN, RS232, 3.5 mm audio out, DC power input.
By The Numbers
Full Specifications
| Model | BenQ LK830ST |
|---|---|
| Display Technology | Single-chip DLP |
| Native Resolution | 4K UHD, 3840 × 2160 |
| Brightness | 4,000 ANSI lumens |
| Contrast Ratio | 3,000,000:1 dynamic |
| Color Coverage | Vivid Rec.709 (factory White Balance Adjustment) |
| Light Source | BlueCore laser, dust-protected optical engine |
| Laser Life | Up to 30,000 hours (Eco), 20,000 hours (Normal) |
| Throw Ratio | 0.496:1 fixed ultra-short throw (no zoom) |
| Projection Example | 300″ image from ~10 ft 10 in |
| Screen Size Range | ~70″ to 300″ diagonal |
| Native Aspect Ratio | 16:9 |
| Supported Aspect Ratios (Screen Fill) | 1:1, 5:4, 4:3, 16:10, 16:9 |
| Projection Offset | 114% (full-height) |
| Lens | F/# = 2.8, f = 17.51 mm |
| Lens Shift | Not supported (use Corner Fit, keystone, Shrink & Shift) |
| Keystone Correction | 2D, Horizontal ±30°, Vertical ±30° |
| Geometric Correction | Corner Fit, Digital Shrink & Shift to ~75–80% |
| Picture Modes | Includes BenQ Golf Mode, Cinema, sRGB, Simulation |
| Input Lag | 16.7 ms (4K/60), 16.7 ms (1080p/60), 8.3 ms (1080p/120), 4.2 ms (1080p/240) |
| Resolution Support | VGA (640 × 480) to 4K UHD (3840 × 2160) |
| Horizontal Frequency | 15 to 135 kHz |
| Vertical Scan Rate | 23 to 240 Hz |
| HDMI Inputs | 2 × HDMI 2.0 |
| USB | 1 × USB-A (1.5 A service / power), 1 × USB-A (Wi-Fi dongle) |
| Control | RJ45 LAN, RS232 |
| Audio Out | 3.5 mm mini jack |
| Power | External DC power brick |
| Dimensions (W × H × D) | 11″ × 4.8″ × 9″ (279 × 121 × 229 mm) |
| Net Weight | 7.5 lbs (3.4 kg) |
| Dealer Status | Elite Sim Golf is an authorized BenQ dealer |
Compare The Lineup
Good, Better, Best — BenQ 4K Golf Sim Projectors
All three BenQ golf-sim projectors deliver true 4K UHD on a laser light engine plus the exclusive BenQ Golf Mode color profile. The differences are brightness, throw geometry, install flexibility, and how much room they can light up.
BenQ LK830ST
Compact 4K ultra-short throw for tight rooms
- 4K UHD 3840 × 2160
- 4,000 ANSI lumens
- 0.496:1 fixed ultra-short throw
- 20,000 to 30,000-hour laser
- Dust-protected optical engine
- 4.2 ms input lag (1080p/240)
- Screen Fill aspect switching
- BenQ Golf Mode
Best For: Compact Rooms, Floor Mounts
BenQ AK700ST
4K short throw with motorized zoom + Auto Screen Fit
- 4K UHD 3840 × 2160
- 4,000 ANSI lumens
- 0.69–0.83:1 short throw
- 1.2× motorized zoom
- Auto Screen Fit alignment
- HDMI 2.0 × 2 + USB-C DP Alt
- ~20,000-hour laser life
- BenQ Golf Mode
Best For: Standard Bays, Easy Install
BenQ LK936ST
5,100-lumen pro short throw with HDBaseT
- 4K UHD 3840 × 2160
- 5,100 ANSI lumens
- 0.81–0.89:1 short throw + 1.1× zoom
- 30,000-hour laser (Eco)
- Lens shift ±60% V / ±23% H
- Dust-sealed BlueCore engine
- HDBaseT + HDR10
- BenQ Golf Mode
Best For: Commercial Bays, Largest Screens
Build The Complete Bay
Pair The LK830ST With The Rest Of The Build
A projector is one piece of the simulator. Elite Sim Golf builds the full bay — enclosure, screen, hitting surface, launch monitor, PC, and projector — sized and shipped together so the geometry works the first time.
Pair It With An ESG Enclosure
The Eagle 12 enclosure is sized for short-throw 4K projectors with proper sidewall clearance and an impact-rated screen surface. Frame, screen, and side curtains ship together.
Build A Complete SimKit
Pre-built SimKit bundles include the projector, enclosure, hitting surface, launch monitor, and PC matched to your room size and budget. Or use the Bundle Builder to spec a custom kit.
