WXGA 4000 Lumens DLP - 3D Ready - HDMI + VGA + Composite Ports - 20000:1 Contrast Ratio - 1280 x 800 Native Resolution - 1920 x 1200 Max Supported WUXGA Resolution - 27"- 300" Projection Size - 15,000 Hrs Lamp Life under Ext Eco Mode - Stereo Out - 3W Built in Speaker - IR Remote Control - Kensington lock - Acer LumiSense - Acer Bluelight Shield - Acer ColorBoost3D - Acer ColorSafe II