UHD55 4K UHD gaming and home entertainment projector | Optoma USA
User manual Optoma UHD51 (English - 53 pages)
Bruksanvisning Optoma UHZ50 (Norsk - 74 sider)
Amazon.com: Optoma HD243X 1080p Projector for Movies and Gaming, Super Bright 3300 Lumens, Long 12000h Lamp Life, 3D Support, Easy Setup with Zoom and Keystone Adjustment : Electronics