BenQ SP820, 4000 ANSI lumens, DLP, XGA (1024x768), 2000:1, 16.78 million colors, 31 - 90 kHz BenQ SP820. Projector brightness: 4000 ANSI lumens, Projection technology: DLP, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 2000 h, Service life of light source (economic mode): 3000 h. Focal length range: 26 - 29.8 mm, Throw ratio: 1.8 - 2.1:1. Analog signal format system: NTSC, PAL, SECAM. Serial interface type: RS-232