Viewsonic PJD6251, 3700 ANSI lumens, DLP, XGA (1024x768), 2800:1, 16.78 million colors, 31 - 100 kHz Viewsonic PJD6251. Projector brightness: 3700 ANSI lumens, Projection technology: DLP, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 4000 h, Service life of light source (economic mode): 5000 h. Focal length range: 19.9 - 23.88 mm, Digital zoom: 1.2x. Analog signal format system: SECAM. Serial interface type: RS-232