Epson PowerLite L210W. Projector brightness: 4500 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WXGA (1280×800). 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: 18.2 – 29.1 mm, Aperture range (F-F): 1.51 – 1.77. Serial interface type: RS-232C. Noise level: 37 dB, Noise level (economic mode): 27 dB