Viewsonic PJ678, 2500 ANSI lumens, LCD, XGA (1024x768), 600:1, 28 - 331", 39.4 - 393.7" (1 - 10 m) Viewsonic PJ678. Projector brightness: 2500 ANSI lumens, Projection technology: LCD, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 3000 h, Lamp power: 205 W. Focus: Manual, Focal length range: 18.85 - 22.23 mm. Analog signal format system: NTSC 4.43, NTSC M, PAL, SECAM. Serial interface type: RS-232