... ,ROHS,UL,TUV,ISO9001 AD22(LED)series of indicator is equally used LED shining chip as light source ... developAD22-22B,C,D,E,G,H,double color lamp, position indicator,shining buzzer and mini short indicator ... the world both safe and beautiful.We bring new products with all kinds of fashionably designed products ... excellent prices and efficient services to you! NEW LED Indicator Light/signal lamp AD22C-16D