Epson PowerLite 51+. Projector brightness: 3800 ANSI lumens, Projection technology: 3LCD, Projector native resolution: XGA (1024×768). Light source type: Lamp, Service life of light source: 6000 h, Service life of light source (economic mode): 12000 h. Focus: Manual, Focal length range: 16.9 – 20.28 mm, Aperture range (F-F): 1.49 – 1.72. Noise level: 37 dB. RMS rated power: 2 W