Epson EB-4770W, 5000 ANSI lumens, 3LCD, WXGA (1280x800), 5000:1, 16:10, 30 - 300" Epson EB-4770W. Projector brightness: 5000 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WXGA (1280x800). Light source type: Lamp, Service life of light source: 4000 h, Service life of light source (economic mode): 5000 h. Focus: Manual, Focal length range: 21.28 - 37.94 mm, Aperture range (F-F): 1.65 - 2.55. Video processing: 10 bit. Serial interface type: RS-232