Modelt928s video formatmp4 mpeg flv rmvb rm vob dat mpg mov avi languagespolish chinese italian japanese russian spanish german french english connectionwired connectors video hdmi input sd card slot vga port usb input voltage v100 240 lamp typeled projection technology3lcd native resolutionwxga 1280x800 supported resolution1080p 1920x1080 brightnesslumens3000 brightness range4000 lumens above aspect ratio43 and 169 contrast ratio30001 projection screen si