Lightinthebox Mini LED 3D Home Theater Business Projector 4000 Lumens 1280x800 1080p VGA USB SD HDMI Input T928 Projection Technology LCD Native Resolution WXGA (1280x800) Supported Resolution 1080P (1920x1080), WXGA (1280x800), 720P (1280x720), XGA (1024x768), SVGA (800x600) Brightness(Lumens) 4000LM Brightness Range 4000 Lumens & Above Aspect Ratio 4:3 and 16:9 Contrast Ratio 2000:1