BenQ TW523P, 3000 ANSI lumens, DLP, WXGA (1280x800), 13000:1, 16:10, 1066.8 - 7620 mm (42 - 300") BenQ TW523P. Projector brightness: 3000 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1280x800). Light source type: Lamp, Service life of light source: 4500 h, Service life of light source (economic mode): 6000 h. Focal length range: 21 - 23.1 mm, Aperture range (F-F): 2.56 - 2.8, Zoom ratio: 1.1:1. Analog signal format system: NTSC, PAL, SECAM, Supported graphics resolutions: 1600 x 1200 (UXGA), 640 x 480 (VGA), Supported video modes: 1080i, 1080p, 480i, 480p, 576i, 576p, 720p. Serial interface type: RS-232, USB connector type: Mini-USB B