Epson Pro Cinema QB1000, 3LCD, UHD 4K (3840x2160), 5000000:1, 16:9, 1270 - 7620 mm (50 - 300"), 3300 ISO lumens Epson Pro Cinema QB1000. Projection technology: 3LCD, Projector native resolution: UHD 4K (3840x2160), Contrast ratio (typical): 5000000:1. Light source type: Laser, Service life of light source: 20000 h. Focal length range: 22.5 – 46.7, Aperture range (F-F): 2 - 3, Zoom ratio: 2.1:1. Supported video modes: 480i, 480p, 576i, 576p, 720p, 1080p, 2160p, Video colour modes: Cinema, Dynamic, Natural, Vivid. Serial interface type: RS-232C