Buy from Amazon : br InFocus IN2112 Meeting Room DLP Projector 3D ready SVGA 3000 Lumensbr br DLP Technology with 3000 Lumens 2400 in Eco mode br 21001 Contrast Ratio br Compatible with PC and Mac br 800x600 Native Resolution 1920x1200 Max br Native 43 aspect ratio 54 169 1610 supported br 247 Non-Stop Projection The new IN2100 series has no duty cycle limitations It is filter-free and rated for 247 operation resulting in less maintenance and hours of worry-free use