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Optoma ZK431ST 4K Golf Simulator Projector – 3900 Lumens Short Throw Laser | UK
Optoma ZK431ST 4K Golf Simulator Projector – 3900 Lumens Short Throw Laser | UK
True 4K UHD. Short Throw. Built for Sim Golf. The Optoma ZK431ST is a 4K UHD short throw projector purpose-built for golf simulators — 3,900 lumens, HDR & HLG, and a 30,000-hour DuraCore laser in Optoma’s most compact chassis yet (up to 34% smaller). Razor-sharp course detail, mounted close to the screen and clear of your swing. The direct upgrade to the ZK430ST.
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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
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
Additional information
| Weight | 4.3 kg |
|---|---|
| Dimensions | 27.4 × 21.6 × 11.4 cm |
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Returns & Refunds
We want you to be completely satisfied with your purchase. If you need to return an item, please read the following carefully:
- Returns Window: Returns are accepted up to 30 days from the date of delivery.
- Condition of Returned Items: To qualify for a straightforward refund, items must be unused, unopened, and in their original packaging. If a product has been opened or used, a refund may be refused at our discretion.
- Return Shipping Costs: Customers are responsible for the cost of returning items unless the item is damaged or faulty.
- Damaged or Faulty Items: If your product arrives damaged or develops a fault, you must notify us within 14 days of receipt. Please include photos or videos where possible to help us resolve the issue quickly.
- Manufacturer Warranty & Repairs: Some items, particularly electronic or technology-based products, are covered by the manufacturer’s warranty. In these cases, the manufacturer may:
- Request to inspect or repair the item,
- Offer a replacement,
- Or resolve the dispute directly with you.
- Right to Refuse Returns: We reserve the right to refuse returns or refunds on items that show signs of misuse, intentional damage, or fall outside our return window.
- Refund Processing Time: Once a returned item is received and approved, your refund will be processed as quickly as possible. Refunds typically appear in your account within 3–7 working days, depending on your bank.
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