Excelvan EHD11 Technology Type TFT-Sintel chanel+LED Techn glob lens F=170(Manual focusing) Resolution Native:800x480 support:720p 1080p Multimedia interface VGA, USB, HDMI, AV, TV YPBPR Speaker 2Wx2 Lamp LED lamp; 20000 hours Projection Method Front, Rear Celling Mount, Table top Lmage Zoom Elecroniv horizontal and vertical flip;image zoom Keystone Correction Manual keystone correction Aspect Ratio 16:9 Native, 4:3 compatitabke; switch freely Power Supply 110V-240 V (±10%), 50/60 Hz