Epson EB-685Wi. Projector brightness: 3500 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WXGA (1280x800). Light source type: Lamp, Service life of light source: 5000 h, Service life of light source (economic mode): 10000 h. Focus: Manual, Zoom ratio: 1.35:1, Throw ratio: 0.28:1. Serial interface type: RS-232C. Noise level: 35 dB, Noise level (economic mode): 30 dB, Country of origin: Philippines