... transmission: 500m- 20km14Operating temperature25+6015Operating humidity10%95%RH16Control modeSynchronized with computer monitor17Drive modeconstant current driving,static scan18Accepting signalPAL/NTSC/SECAMS-VideoVGARGBComposite ... .The list of available Models of ouroutdoor LED display/screen/panel/sign:PH10mm,12mm,14mm,16mm,18mm,20mm,25mm,31.25mm ...