... (PSP,PS1,PS2,PS3,XBOX360,WII)DVD, Movie, TV/laptop DG747 LED projector is a new kind of economical projector which ... Keystone correction, the picture aspect ratio can switch from 16:9 to 4:3.(3) OSD screen display function(4 ... 768Brightness(PeakValue)2500LumensContrast ratio800 : 1Lamp70WColors1.67 millionAspect Ratio4:3 or 16:9Optical LensManual focusProjection Distance1.76 – 5.51 metersImage Size50 ...