Epson EB-1781W, 3200 ANSI lumens, 3LCD, WXGA (1200x800), 10000:1, 16:10, 16:10 Epson EB-1781W. Projector brightness: 3200 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WXGA (1200x800). Light source type: Lamp, Service life of light source: 4000 h, Service life of light source (economic mode): 7000 h. Focus: Manual, Focal length range: 13.52 - 16.22 mm, Aperture range (F-F): 1.58 - 1.7. Wi-Fi standards: 802.11b, 802.11g, Wi-Fi 4 (802.11n). Noise level: 39 dB, Noise level (economic mode): 30 dB