The ViewSonic PJ557D DLP projector features 2,200 lumens, native 1024x768 resolution, ultra-high 2000:1 contrast ratio (typ) and Brilliant Color for precise images in virtually any setting. This full-featured projector includes Multiples Inputs for connecting a computer or video source, dual 5-watt speakers for complete multimedia presentations, Vertical Keystone Correction for easy image adjustment and Direct Off Feature. Choose from whiteboard, blackboard or greenboard mode for the best picture on your projection surface. Eco-mode extends lamp life and reduces fan noise as low as 34dB. Protect your projector from theft and unauthorized use with the Kensington security port and PIN lock password. This projector is perfect for multimedia classroom lessons and corporate presentations.
Have purchased two of these units. The second was purchased after we had owned and used the first for about 3 months at our church. It is a pleasant surprise to purchase a product that actually does more than is expected of it but I must say that the brightness and contrast of this projector in a brightly lighted room really far exceeded our expectations. They have been very easy to set up and use and the auto keystone feature included with the software made positioning of the projectors a snap even with the high ceilings in our building. I have not received the rebate items as of today which seems a bit excessive, but otherwise I would certainly recommend this item for those needing a dependable, hassle free, and easy, to use presentation projection unit. It works equally well with our mobile cart or on the permanent mounted ceiling position.