04-09-2018, 05:42 PM
John E, The 12volt means that requires 12volts to operate the internal solenoid. The solenoid operates the switch when the ignition key is turned ie on morris 1000,minis etc. A manual operation is by pressing the black knob on the unit, it could be used as astop gap until the correct unit can be found for £10. Good look on finding one.