Epson EB-2247U, 4200 ANSI lumens, 3LCD, 1080p (1920x1080), 15000:1, 16:10, 30 - 300" Epson EB-2247U. Projector brightness: 4200 ANSI lumens, Projection technology: 3LCD, Projector native resolution: 1080p (1920x1080). Light source type: Lamp, Service life of light source: 5500 h, Service life of light source (economic mode): 12000 h. Focus: Manual, Focal length range: 23 - 38.4 mm, Aperture range (F-F): 1.5 - 2. Video color modes: Blackboard, Cinema, Dynamic, Presentation, sRGB. Serial interface type: RS-232C