... are in confirmity with National 3Ccertification (Professional Category) “Professional Class”:GB4943-2001, GB9254-2008(A Class), GB17625.1-2003 Application: Labwe Large Screen All-in-one ... nitsContrast Ratio:6000:1Response Time:6.5 msDisplay Color:1.06 GVideo System:PAL/NTSCInput Port:FRx1, PCx1, CVBSx2, S-VIDOx1, YPbPr ...