Epson PowerLite 580 LCD XGA Ultra Short Throw (UST) ProjectorBrighten up your classroom presentations with the Epson PowerLite 580 3200 Lumen XGA Ultra Short Throw 3LCD Projector. Its white and color brightness of 3200 Lumens makes images visible in most ambient light while its 1024 x 768 native resolution and 10,000: 1 contrast ratio help make those images clear and distinct. Its ultra short 0. 31 to 0. 42: 1 throw ratio allows you to place the projector very near the screen, preventing shadows from passers by