... Brightness (nits) 700cd/m2 Contrast 4000:1 Full Color DID Video wall:Input CVBS Each one BNC terminal, support PAL/NTSC ... color10bitViewing Angle178°Splicing Seam9mmInput interface0Lux/F1.2Signal formatsComposite video ,YPbPr,S-VIDEO, VGA,DVI/HDMIControl InterfaceRs232Image ProcessingFull-screen display, ... humidity15-85%Power SupplyAC220V,180WUnit Weight18KGS Full Color DID Video Wall (2*2, 3*3,1*4)