Epson EB-1930, 4200 ANSI lumens, 3LCD, XGA (1024x768), 3000:1, 4:3, 30 - 300" Epson EB-1930. Projector brightness: 4200 ANSI lumens, Projection technology: 3LCD, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 3500 h, Service life of light source (economic mode): 5000 h. Focus: Manual, Focal length range: 18 - 29 mm, Aperture range (F-F): 1.51 - 1.99. Video processing: 10 bit, Color modes (2D): Dynamic, Video color modes: Blackboard, Dynamic, Photo, Presentation, sRGB, Theatre, Whiteboard. Serial interface type: RS-232, USB connector type: USB Type-A, USB Type-B