... , 16:9 CompatibleProjection MethodFront, Rear,Ceiling,Table Top; support horizontal and vertical flipWeight3.2 kgI/O ConnectorsInputs:PC/Video ... .5m~8m (30"- 280") Diagonal 4:3Lamp Type/Lamp Life120W,Led Lamp above 20000hrs lifeKeystone Correction± 15° Vertical Dimensions (W ... > Powerful Cooling system> Low-decibel Ultra-quiet Newest overhead projector with 800x600Pixels 2300lumens HDMIx3,USBx2,TVx1