... CE,CCC,ROHS,UL,TUV,ISO9001 AD22(LED)series of indicator is equally used LED shining chip as light source with ... with top quality and aesthetic demand of user,we developAD22-22B,C,D,E,G,H,double color lamp, position indicator,shining ... .(2)Insulated resistance≥2MΩ(3)Voltage wave allowed by AC indicator±20%(4)Continual working life≥30000h(5)Brightness≥60cd/m2 ...