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