Optoma TW610STI+ WXGA Short Throw DLP ProjectorBright, Interactive, and Short Throw Projection Introducing the Optoma TW610STi+ DLP Projector. With its short throw lens and interactive capabilities, this projector is ideal for classrooms and meeting rooms, delivering bright, clear images even in limited spaces. Technology: DLP Brightness: 3200 Lumens Native Resolution: WXGA (1280 x 800) Contrast Ratio: 3000: 1 Throw Ratio: Short Throw