Optoma ZK608TST 6000lms 4K UHD Short Throw Laser Golf Simulator ProjectorThe Optoma ZK608TST delivers 4K UHD golf simulation with 6,000 lumens brightness and a short throw ratio. With a 30,000 hour laser and IP6X dust resistant design, it provides reliable performance for years of play. 6,000 lumens brightness for clear images in any lighting condition 0. 58: 1 short throw ratio projects large images from up close 30,000 hour laser life eliminates maintenance costs