InFocus LP640 Business LCD Video Projector 1024 x 768 XGA native resolution, 4:3 aspect ratio 2,200 ANSI lumens of brightness, 400:1 contrast ratio Zoom lens with manual zoom/focus; front/rear/ceiling projection NTSC, PAL, SECAM, HDTV 1080i, 1080p, 720p, and 480p video compatibility Optional wired and wireless networking