Epson EB-L520U. Projector brightness: 5200 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WUXGA (1920x1200). Light source type: Laser, Service life of light source: 20000 h, Service life of light source (economic mode): 30000 h. Focus: Manual, Focal length range: 20 - 31.8 mm, Aperture range (F-F): 1.5 - 1.7. Video processing: 10 bit, Video color modes: Cinema, Dynamic, Presentation, sRGB, DICOM simulation mode. Serial interface type: RS-232C