... CCC,ROHS,UL,TUV,ISO9001 AD22(LED)series of indicator is equally used LED shining chip as light source with ... -22B,C,D,E,G,H,double color lamp, position indicator,shining buzzer and mini short indicator ... beautiful.We bring new products with all kinds of fashionably designed products to the whole esectrical apparatus ... and efficient services to you! NEW LED Indicator Light/signal lamp AD22C-16D