Optoma ZK431ST 4K Golf Simulator Projector – 3900 Lumens Short Throw Laser | UK

Optoma ZK431ST 4K UHD Short Throw Laser Golf Simulator Projector The Optoma ZK431ST is one of the best short throw projectors for a golf simulator we’ve tested — a true 4K UHD laser projector that throws a huge, razor-sharp image from just a short distance in front of your screen. With 3,900 lumens of brightness, HDR & HLG support and a DuraCore laser light source rated for 30,000 hours, every fairway, bunker and green renders with stunning, lifelike detail. It’s the direct upgrade to the popular ZK430ST, packed into a chassis up to 34% smaller. True 4K Detail for Your Simulator Native 4K UHD resolution (3840 x 2160) puts four times the detail of a standard 1080p projector onto your impact screen. Course textures, grain, distance markers and ball flight all read cleanly, giving you the immersive, true-to-life picture that serious sim golfers are after. A 300,000:1 contrast ratio and 1.07 billion displayable colours keep shadows deep and greens natural, while HDR and HLG support add extra punch and realism to compatible content. Short Throw, Big Picture The 0.496:1 short throw lens fills a wide simulator screen from a short distance — projecting images up to 300″ diagonal from as little as 0.4m to 3.3m away. Mounting close to or above the screen means the projector sits out of your swing path, eliminates shadows over the ball, and frees up valuable floor space in a compact UK golf room. With 360-degree and portrait projection plus ±15° digital keystone correction, installation is flexible enough for almost any setup. Laser Reliability, Zero Maintenance DuraCore laser technology delivers 30,000 hours of maintenance-free operation — that’s years of regular use with no lamps to replace and no drop-off in brightness. The laser fires up to full brightness almost instantly, supports 24/7 operation, and is sealed to an IP6X dust rating for long-term reliability in a busy simulator environment. Key Features True 4K UHD resolution (3840 x 2160) for ultra-sharp course visuals Bright 3,900 lumens — performs in rooms with some ambient light DuraCore laser light source — 30,000 hours, maintenance-free 0.496:1 short throw lens — big image, minimal distance, no shadows HDR & HLG support for enhanced contrast and realism Up to 34% more compact than previous Optoma models 360-degree and portrait projection with ±15° keystone 15W built-in speaker and 2x HDMI 2.0 (1x eARC) connectivity Optoma Management Suite (OMSC) & Smart App for remote control Why Choose TEKDEN? UK Golf Simulator Specialists We’re not a generic retailer. TEKDEN focuses exclusively on golf simulation technology, so every product is selected by people who understand the game. Authorised Optoma Dealer Every projector we sell is genuine UK stock backed by full Optoma manufacturer warranty — never grey-market imports. Expert Setup Advice Got questions about throw distance or mounting? Our team are golfers who use simulators daily and give real advice, not scripted responses. Fast UK Delivery Shipped from UK distribution with free mainland delivery — no waiting weeks for imports or dealing with overseas returns. Technical Specifications Resolution True 4K UHD (3840 x 2160) Brightness 3,900 Lumens Contrast Ratio 300,000:1 Display Technology Single-chip DLP Light Source DuraCore Laser — 30,000 hours Throw Ratio 0.496:1 (Short Throw) Projection Distance 0.4m – 3.3m Image Size 36″ – 300″ diagonal HDR Support HDR10 & HLG Connectivity 2x HDMI 2.0 (1x eARC), RS232, RJ45, 12V trigger, 2x USB-A power, 3.5mm audio out Built-in Speaker 15W Dimensions (W x D x H) 274 x 216 x 114 mm Weight 2.9kg (net) Frequently Asked Questions How does the ZK431ST compare to the older ZK430ST? The ZK431ST is the direct replacement for the ZK430ST. It keeps the same true 4K UHD resolution and reliable DuraCore laser light source, but comes in a significantly more compact chassis (up to 34% smaller) with refined connectivity. If you owned or considered the ZK430ST, the ZK431ST is its modern successor. Is the ZK431ST a good projector for a golf simulator? Yes — it’s purpose-suited to sim golf. The short throw lens lets you mount it close to the screen so it stays out of your swing and casts no shadow over the ball, the 4K resolution renders course detail crisply, and 3,900 lumens keeps the picture bright on a large impact screen. It’s one of the strongest 4K short throw options for a home or commercial simulator. How far from the screen does it need to be? With a 0.496:1 throw ratio, the ZK431ST projects a large image from a short distance — roughly 0.4m to 3.3m depending on your screen width. For a typical 10–12ft wide simulator screen it mounts well within a compact room, which is exactly why short throw projectors are the standard choice for sim golf. Do I need to replace the lamp or bulb? No. The ZK431ST uses a DuraCore laser light source rated for 30,000 hours of maintenance-free operation. There’s no lamp to buy or swap, and brightness stays consistent over its life — even with daily simulator use. What support and warranty do I get? As an authorised Optoma dealer, TEKDEN supplies genuine UK stock with full Optoma manufacturer warranty, plus our own expert installation advice and after-sales support tailored to golf simulator setups. Delivery & Returns UK Mainland Delivery: FREE — typically dispatched within 1-3 working days Scottish Highlands & Islands: Additional charges may apply Returns: 14-day returns policy on unused items in original packaging