25 amp @ 12 volts heavy duty change-over On/On metal toggle panel switch with silver contacts. Requires a 12.5mm mounting hole. Overall size 30mm x 16mm and requires a maximum mounting clearance of 35mm (behind the panel) without the wiring. Maximum panel thickness of 6mm. This switch can be used to change from high beam to dipped beam, or to change from one type of horn to a different one, example from a standard horn to a klaxon.