BenQ LK830ST - 4K Short-Throw Laser Golf Simulator Projector | 4,000 Lumens

4K Laser. Short Throw. Built Specifically for Golf Simulators.

The BenQ LK830ST is the first projector in BenQ's lineup designed from the ground up with golf simulators in mind — and it shows in every specification. With a 0.5 short throw ratio, a laser light source producing 4,000 ANSI lumens, and a dedicated Golf Mode color preset, the LK830ST delivers the image quality serious simulator setups demand in the tight spaces where they actually live: garages, basements, spare rooms, and dedicated sim studios.

The laser engine changes the equation for long-term ownership. There are no bulbs to replace, no gradual brightness fade to track, and no expensive lamp costs after 2,000 hours. The LK830ST's laser is rated for 20,000 hours of reliable life — that's over a decade of daily play before you start thinking about a replacement. Combined with an IP6X-sealed optical engine that shrugs off the dust, chalk, and humidity of a real simulator environment, this projector is built to stay on the wall or floor and just work, season after season.

The short throw ratio means you can fill a 10-foot-tall impact screen from as little as 5 feet away — making it genuinely compatible with nearly every bay configuration Golf Sim Depot customers build. And the Screen Fill feature makes it simple to match the image to your specific screen's aspect ratio with a single button press, whether you're running a 1:1 SIG8, a 4:3 SIG10 or SIG12, or a custom enclosure.

Key Benefits

• ✔ True 4K UHD Resolution (3840 × 2160 / 8.3M pixels) — Every blade of grass, every bunker edge, every fairway line rendered in stunning detail
• ✔ 4,000 ANSI Lumens Laser Brightness — Vivid, high-contrast image in both lit and dark environments; handles screens up to 10' tall
• ✔ 0.5 Short Throw Ratio — Fill a massive impact screen from just feet away; designed for garages, basements, and dedicated sim rooms with limited depth
• ✔ 20,000-Hour Laser Life — No bulbs, no lamp replacements, no brightness fade; just reliable performance for years
• ✔ IP6X-Sealed Optical Engine — Fully dust-proof laser engine; built for the real-world conditions of a simulator environment
• ✔ Golf Mode Color Preset — BenQ's exclusive tuning for golf course environments, optimized for fairway greens, sand color, and sky tones
• ✔ 93% Rec.709 Color Accuracy — Industry-standard color gamut for lifelike, accurate course visuals
• ✔ Screen Fill — One-button aspect ratio matching for different screen shapes; no manual image resizing required
• ✔ Floor Mount Ready — Designed for floor mounting behind the golfer; 114% projection offset + ±30° keystone + Corner Fit enable flexible positioning
• ✔ 3,000,000:1 Contrast Ratio — Deep blacks and bright highlights for a cinematic image on your impact screen
• ✔ Built-In 15W Speaker — Course audio without additional hardware; upgrade to external speakers any time
• ✔ Optional Wireless Projection — BenQ QP30 dongle (sold separately) enables 1080p 60Hz wireless projection from compatible devices

Who Is This For?

• ✅ Simulator builders who want the best projector under $3,000 — The LK830ST delivers true 4K laser performance at a price point that's historically required compromises; it doesn't
• ✅ Golfers in garages, basements, or rooms with limited depth — The 0.5 short throw ratio produces large images from short distances, making it ideal for tighter bay setups
• ✅ Floor-mount simulator configurations — The offset and keystone range are dialed in for floor-mounting behind the golfer, eliminating shadow interference from overhead mounts
• ✅ SIG8, SIG10, and SIG12 Studio owners — Screen Fill makes it dead simple to fill any SIG screen's aspect ratio without manual geometry adjustments
• ✅ Long-term sim owners who are tired of buying projector bulbs — Switch to laser and stop worrying about lamp replacement costs and brightness degradation
• ✅ Commercial bay operators — The IP6X engine and 20,000-hour laser life mean minimal maintenance and maximum uptime across multiple bays

Throw Distance Reference

With a 0.5 throw ratio, the LK830ST produces approximately twice the image width compared to the throw distance. The table below shows approximate image sizes at common throw distances:

Use BenQ's free Golf Sim-Room 3D Planner to calculate exact throw distances for your specific screen and room dimensions.

Screen Fill — Aspect Ratio Compatibility

The LK830ST's Screen Fill feature lets you match the projected image to your impact screen's shape with a single button press. This is particularly useful for Golf Sim Depot customers running:

• SIG8 Studio (1:1 aspect ratio screen) — Screen Fill crops the image to fill the square screen cleanly
• SIG10 / SIG12 Studio (4:3 aspect ratio screen) — Screen Fill expands to fill the wider format without distortion
• Custom enclosures with 16:9 screens — Native widescreen, no adjustment needed

Note: BenQ advises that 4:3, 16:10, 1:1, and non-standard screen ratios may show some image cropping or distortion depending on the software's output format. Test your simulator software's output settings with your specific screen.

Pairing with Golf Sim Depot Impact Screens

The LK830ST is fully compatible with all Golf Sim Depot impact screens and enclosures. Recommended pairings based on screen size and throw requirements:

Always confirm throw distance using BenQ's planner tool or contact our team for a free setup consultation.

Technical Specifications

What's Included

• BenQ LK830ST 4K Laser Short Throw Projector
• Power Cord
• Remote Control
• Quick Start Guide

What's NOT Included

• Projector mount or bracket (floor mount bracket, ceiling mount, or optional BenQ floor stand sold separately)
• HDMI cable (not included; required for connection to simulator PC)
• Simulator computer / PC
• Launch monitor
• Impact screen or enclosure (sold separately — see Golf Sim Depot's SIG Studio packages and screen options)
• Simulator software license
• BenQ QP30 wireless dongle (sold separately for wireless projection)

Installation Requirements

• Requires a simulator room with at least 4–5 feet of available throw distance behind or in front of the hitting position depending on screen size
• Floor mount is the most common configuration for golf simulators — place the projector behind the golfer on the floor, angled up toward the screen
• The 114% offset and wide keystone range allow the projector to be positioned below the screen centerline (as with floor mounting) and still fill the screen cleanly
• Ceiling mount is supported for bays with adequate clearance and a suitable bracket
• Compatible with all standard screen aspect ratios via Screen Fill
• For ceiling mount use with 4:3 or 1:1 screens, confirm image fit with BenQ's planner tool before installing

Shipping & Returns

The BenQ LK830ST ships via standard ground carrier. Most orders are processed within 1–3 business days with delivery in 3–7 business days. Projectors are fragile precision optical instruments — inspect the package for damage upon arrival before signing for delivery.

Returns are accepted within 30 days of delivery for items in original, unmodified condition. Please contact Golf Sim Depot support before initiating a return. Projectors that have been mounted, modified, or show signs of use may not be eligible for a full refund. Projector defects are covered under BenQ's manufacturer warranty.

Frequently Asked Questions

Is the LK830ST actually designed for golf simulators, or is it just marketed that way?
It's genuinely purpose-built for simulation. BenQ built a dedicated golf simulator product page, a Golf Mode color preset, a Screen Fill tool for different screen shapes, a 3D room planner, and specific floor mounting guidance — all targeted at the simulator market. It also integrates into BenQ's broader Golf Projector Hub+ ecosystem. This isn't just a repurposed business projector.

How does laser compare to a lamp projector in a simulator?
Laser wins on every dimension that matters for simulators: brightness stays consistent over time (lamp projectors fade noticeably after 1,000–2,000 hours), there are no replacement bulbs to buy ($200–400 per lamp), startup is instant with no warm-up time, and the IP6X sealed engine handles the dust and humidity of a real simulator environment that would degrade a lamp projector's optics.

What's the difference between floor mounting and ceiling mounting for golf?
Floor mounting places the projector behind the golfer, on the floor or a low platform, angled up toward the screen. This eliminates the risk of the golfer's backswing casting shadows on the screen — a major issue with ceiling-mounted projectors in ceiling-height-limited rooms. The LK830ST's 114% offset and wide keystone correction make floor mounting work cleanly. BenQ specifically recommends this configuration for golf simulators.

Will the 0.5 throw ratio work in my space?
Measure the distance from your planned projector position to your impact screen. Multiply that distance by 2 to get the approximate image width. For example, 5 feet of throw distance produces roughly a 10-foot-wide image. Use BenQ's free Golf Sim-Room 3D Planner to get precise numbers for your space before purchasing.

Does Screen Fill work with the SIG8 (1:1 aspect ratio) screen?
Screen Fill is designed to match non-standard aspect ratios including 1:1. In practice, your simulator software's output settings also factor into the final image — confirm your software supports 1:1 or square output modes for best results with the SIG8.

Can I add wireless projection?
Yes, with the optional BenQ QP30 dongle (sold separately). It enables 1080p 60Hz wireless projection and 4K 30Hz upscaling from compatible devices. For most simulator software running on a dedicated PC, a direct HDMI cable connection is recommended for lowest latency.

What's the input lag at 4K?
BenQ lists input lag at 16.7ms for 1080p @ 60Hz. The 4K input lag is not separately specified but is expected to be similar. For golf simulator software, 16.7ms is well within the range that feels responsive during play — most simulator-specific lag perception is driven by the launch monitor's calculation time, not the projector.

How does the LK830ST compare to the BenQ LW820ST?
The LK830ST is the newer, higher-end model: true 4K UHD resolution vs. the LW820ST's 1080p, laser vs. lamp light source, and a significantly longer rated lifespan. If you're investing in a simulator for the long term, the LK830ST is the better buy.