BenQ MW881UST, 2500 ANSI lumens, DLP, WXGA (1280x800), 5000:1, 1447.8 - 7620 mm (57 - 300"), 1.073 billion colours BenQ MW881UST. Projector brightness: 2500 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1280x800). Light source type: Lamp, Service life of light source: 3500 h, Service life of light source (economic mode): 5000 h. Offset: 130%. Analog signal format system: NTSC, PAL, SECAM. Serial interface type: RS-232