Viewsonic X1-4KE PRO data projector Standard throw projector UHD 4K (3840x2160) Black, Green

Viewsonic X1-4KE PRO. Projector native resolution: UHD 4K (3840x2160), Contrast ratio (typical): 3500000:1, Native aspect ratio: 16:9. Light source type: LED, Service life of light source: 60000 h. Focal length range: 16.89 - 21.87 mm, Aperture range (F-F): 2.48 - 2.78, Throw ratio: 1.15-1.5. Serial interface type: RS-232. Internal storage capacity: 8 GB