It contains indicators,signal lamp, pilot lamp,signal light,indicator,lamp,pilot light,indicator lamp, indicator light QN16-LED (16mm ) pilot lampThe crust material: Stainless steel / Nickel-plated brassLED color: Red/Green/Blue/Yellow/Orange/WhiteLED rated voltage: 6V/12V/24V/110V/220VLED type: ringLED life: about 50000 hoursButton material: Stainless steel / Nickel-plated brassButton shape:Flat ...