Optoma HD23 Full HD Home Cinema 1080p Projector , 2500lm , DLP , 5000:1 , Contrast Ratio 1080p (1920 x 1080) resolution 2500 lumens of brightness and 5000:1 contrast ratio 2 HDMI, VGA, component video and composite inputs Supports HDTV and DTV signals DLP (Digital Light Processing) technology