Make every power-point presentation a memorable one thanks to the HP xb31. To display your images with superb brightness and clarity, this HP Projector boasts a brightness of more than 1,200 lumens and a contrast ratio of 425:1. A pop-out front elevation foot and a threaded rear leg let you easily adjust the HP xb31 during setup. All connection ports in this DLP Projector are conveniently located at the rear so that there are no dangling cables in the front. This HP Projector sport two LED on top to alert you about an impending lamp failure and overheating. The video sources supported by the HP xb31 include NTSC, PAL, HDTV and SECAM. This DLP Projector features a 1.2X optical-zoom and a 31X digital zoom for fine close ups.