Optoma W303ST Full 3D WXGA 3000 Lumen DLP Short Throw Projector with 18,000:1 Contrast RatioThe Optoma W303ST is engineered to deliver exceptional short throw performance in space constrained environments such as classrooms, meeting rooms, and boardrooms. The W303ST is a cost effective short throw projector that sports an impressive 3000 Lumens and 18,000: 1 contrast ratio for sharp text. Specifications Cost effective short throw projector with 3000 Lumens and 18,000: 1 contrast ratio Text, images and video are sharp and easy to read