... 3.Advanced dot adjusting 4.CE,ROHS Super brightness Modular LED video screens advertising 1) System structure ... Speed>300HZPower Supply220V/50HZMTBF≥10,000hoursLife Span (50% brightness)≥100,000hoursControl Modesynchronization with PCInput Signal FormatVGA,DVI,RGBHV ... ,PbPr(HDTV),Composite,S-Video,TVOperating SystemWINDOWS(98,2000,XP,Vista)6)Production Machine7)Qualification Authentication ...