Product type:Metal indicator light Hole diameter:22mm Led color:red/orange/green/blue/white Shell color:Silver Terminal type:Screw/Pin terminal Led Voltage:3-6V/12-24V/110-220V Waterproof level:IP66 Contact type:1NO The lamp have no electrode, no need to divide the positive and negative poles when wiring. Manual measurement, there may be a little error. Metal indicator light with rubber sealing ring dustproof. Certificate authentication