Full product details

Why Buy the Optoma 4K400STx From Golf Sim Genies?

• 4K detail at a lower upfront cost: A good fit when you want true 4K simulator visuals and are comfortable with a lamp-based projector.
• Short-throw placement: The 0.5:1 throw ratio fills a large screen from close range, useful for compact simulator bays.
• Responsive play feel: 4.0ms input lag (1080p/240Hz) makes it appealing for simulator users who care about fast visual feedback.
• Honest lamp-versus-laser tradeoff: This model prioritizes 4K value over laser maintenance convenience, so it is best for buyers who understand future lamp replacement.
• Projector fit guidance: Call or text (855) 718-4560 and we will help decide whether this value 4K option or a laser model fits your setup better.

Optoma 4K400STx — True 4K UHD Short-Throw Golf Simulator Projector

The Optoma 4K400STx delivers true 4K UHD resolution at one of the most accessible price points for a 4K short-throw projector. It outputs 4,000 ANSI lumens with a 0.5:1 throw ratio, filling a 100-inch screen from just over 4 feet away with 8.3 million on-screen pixels. With HDR10 and HLG support, 4.0ms input lag at 1080p/240Hz, four-corner keystone correction, S/PDIF optical audio, a 12V trigger, and dual HDMI 2.0, it offers a feature set that punches above its price.

Why Golfers Choose the 4K400STx

• True 4K UHD (3840×2160): 8.3 million on-screen pixels render fairways, greens, and data overlays in razor-sharp detail on screens up to 300 inches.
• 4,000 Lumens: Bright enough for rooms with ambient light.
• 0.5:1 Short Throw: Fills a 100-inch screen from just over 4 feet — one of the tightest throw ratios in any 4K projector, ideal for compact simulator bays.
• 4.0ms Input Lag: Ultra-low input lag at 1080p/240Hz so your sim software reacts instantly to every swing.
• HDR10 + HLG: Richer blacks, brighter whites, and more shadow detail, with a 1,000,000:1 contrast ratio.
• Four-Corner Correction: ±40° keystone in both planes for a square image from off-center mounts.

Throw Distance and Placement

The fixed 0.5:1 throw ratio projects a large 4K image from close to the screen, with extensive four-corner correction for placement flexibility:

• 80" screen — ~3.3 ft
• 100" screen — ~4.1 ft
• 120" screen — ~4.9 ft
• 150" screen — ~6.2 ft

Key Specifications

• Resolution: 4K UHD (3840 × 2160)
• Brightness: 4,000 ANSI lumens
• Light Source: Lamp (4,000–15,000 hrs depending on mode)
• Throw Ratio: 0.5:1 (fixed)
• Contrast: 1,000,000:1
• HDR Support: HDR10 / HLG
• Input Lag: 4.0ms (1080p/240Hz)
• Aspect Ratio: 16:9 (4:3 mode available)
• Connectivity: 2× HDMI 2.0, S/PDIF, USB-A, RS232, 12V trigger
• Speaker: 10W built-in
• Keystone: 4-corner, ±40° H/V
• Noise Level: 24–28 dB
• Weight: 8.77 lbs
• Dimensions: 12.4 × 4.65 × 10.63 in (W×H×D)
• Max Screen Size: up to 300"

Lamp vs. Laser: An Honest Comparison

The 4K400STx uses a traditional lamp — not a laser. This is how Optoma delivers 4K at this price point:

• Lamp life: ~4,000 hours (Bright), ~10,000 hours (Eco), up to ~15,000 hours (Dynamic).
• At 4 hours of daily use in Eco mode, that is roughly 7 years before replacement.
• Replacement lamps typically run $100–$200.
• The tradeoff: you save meaningfully upfront versus comparable laser 4K projectors.

Compatibility

The 4K400STx connects via HDMI 2.0 and works with any PC- or console-based simulator software, including GSPro, E6 Connect, TGC 2019, Creative Golf 3D, and Awesome Golf. It is a display device — compatible with any standard simulator setup.

Why Golf Sim Genies

Golf Sim Genies is an authorized Optoma dealer, so your projector is backed by Optoma’s manufacturer warranty. From your first message, we offer straight advice to help you match the right projector to your room, launch monitor, screen, and budget. Reach our team at (855) 718-4560 or support@golfsimgenies.com.

Warranty, Shipping & Returns

• Warranty: Backed by Optoma’s manufacturer warranty (1-year on this model). Defective units are serviced directly by Optoma’s U.S. support team in Fremont, CA, and we help facilitate the claim.
• Shipping: Free shipping to the contiguous United States (lower 48).
• Returns: Accepted within 30 days of delivery on new, unused products in original packaging; a restocking fee may apply. Please inspect your shipment on arrival and contact us within 24 hours of any shipping damage. See our Refund & Return Policy for full details.
• Price Match: Found it for less at another authorized Optoma dealer? See our Price Match Policy.

Frequently Asked Questions

How bright is the 4K400STx and will it handle ambient light?
It outputs 4,000 ANSI lumens — bright enough for most simulator rooms, including spaces with moderate ambient light.

What is the throw distance?
A fixed 0.5:1 throw ratio. A 100-inch screen sits about 4.1 ft from the projector; a 120-inch screen about 4.9 ft.

Is it a laser or lamp projector?
It uses a 240W lamp (not a laser), rated up to ~15,000 hours in Dynamic mode. Replacement lamps are available, which keeps the purchase price lower than comparable laser 4K projectors.

What is the input lag?
4.0ms at 1080p/240Hz — among the lowest available in any projector.

Does it support HDR?
Yes — both HDR10 and HLG.

Can I ceiling-mount it?
Yes, and four-corner keystone correction (±40°) lets you align the image even with off-center mounting.

Will it work with my simulator software?
Yes — it connects via HDMI 2.0 and works with any PC- or console-based simulator software.