Acer Essential P1387W, 4500 ANSI lumens, DLP, WXGA (1280x800), 17000:1, 16:10, 4:3, 16:9, 16:10 Acer Essential P1387W. Projector brightness: 4500 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1280x800). Light source type: Lamp, Service life of light source: 3000 h, Service life of light source (economic mode): 4000 h. Focus: Manual, Focal length range: 18.17 - 21.81 mm, Aperture range (F-F): 2.41 - 2.7. Analog signal format system: NTSC, PAL, SECAM G, Supported graphics resolutions: 1280 x 800 (WXGA), 1920 x 1200 (WUXGA). Noise level: 34 dB, Noise level (economic mode): 29 dB