... 1.Full color LED Billboard Operating Humidity <90%R.H Waterproof front face:IP67 Good after-sale Certification CE,ROHS,ISO 1.Full ... color LED Billboard2,Operating Humidity <90%R.H 3,Waterproof front face ... color ≥16,384grace22Brightness adjustmentAutomatically:256 levels for each color (R,G,B) Manually: 100 levels for each color (R,G,B)23Ingress ...