... CCC,ROHS,UL,TUV,ISO9001 AD22(LED)series of indicator is equally used LED shining chip as light ... E,G,H,double color lamp, position indicator,shining buzzer and mini short indicator,as well as design shape of ... Insulated resistance≥2MΩ(3)Voltage wave allowed by AC indicator±20%(4)Continual working life≥30000h(5)Brightness≥ ... and efficient services to you! NEW LED Indicator Light/signal lamp AD22C-16D