Epson EB-E20. Projector brightness: 3400 ANSI lumens, Projection technology: 3LCD, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 6000 h, Service life of light source (economic mode): 12000 h. Focus: Manual, Fixed focal length: 1.67 cm, Zoom ratio: 1.35:1. Serial interface type: RS-232C, HDMI connector type: Full-size. Noise level: 37 dB, Noise level (economic mode): 28 dB, Preset modes: Blackboard, Dynamic, Presentation, Theatre, sRGB