NEC NP-UM351W 3500-Lumen Widescreen Ultra Short Throw ProjectorNECs UM351W is a 3500 lumen ultra short throw projector that packs a multitude of features while delivering an extremely short throw distance for education and corporate applications. A complete interactive projector solution can be created using the optional NP03Wi interactive system (dual pens) with auto calibration. With its ability to be mounted to the wall directly above the screen on which it projects, this model helps eliminate the shadows and