Optoma ZH450ST 4200lms 1080p Short Throw Laser Golf Simulator ProjectorThe Optoma ZH450ST delivers bright Full HD 1080p visuals with 4,200 lumens in an ultra compact design. This compact projector provides reliable performance in a package up to 34% smaller than previous models. 4,200 lumens brightness ensures clear images in well lit environments 0. 496: 1 short throw ratio projects 100" images from just 3. 3 feet Ultra compact design with efficient external power supply