It contains indicators,signal lamp, pilot lamp,signal light,indicator,lamp,pilot light,indicator lamp, indicator light QN8-LED (8mm ) indicator light / pilot lampThe crust material: Stainless steel / ... Red/Green/Blue/Yellow/Orange/WhiteLED rated voltage: 6V/12V/24V/110V/220VLED type: dotLED life: about 50000 hoursButton material: ... .Pls contact us for more information. QN8-LED (8mm ) indicator light