hot sale 22mm AD16-22D high quality industrial pilot light signal lamp indicator light type : AD16-22D place of origin : Zhejiang Province , China (Mainland) brand name : NIN color : white green red yellow blue supply voltage : AC/DC 6V 12V 24V 36V 48V 110V 220V 380V light source : LED continuous operating life : more than 30000 hours protection level : IP65