New Headlight Switch. UNVERSAIL OLD CAR LIGHT SWITCH, we have those also in our e-bay store, the original knobs will not fit in this switch20 Amp Switch w/ circuit breaker and inside dimmer switch for dome lightFor 12 or 6 Volt Applications.Triple Chrome Plated Knob With Set Screw To Secure It. Switch is Marked for wire hook up, see 2nd pictureOperates: Headlights, Dash Lights, Tail Lights & Parking Lights.Dashboard MountedThe switch will need room behind the dash. We have mounted a circuit breaker on this switch so no fuse is needed