12v 4Pin 30A Relay For Car Automotive Boat Van Motorbike Lights Horns Fuel Pump Material: Premium quality relay Color: Black 4 Pin， 12V DCThe relay is designed to remove any extra strain onto the vehicles electrical system， low amperage circuit (usually less than 1A) is used as a switch. To turn on or off the high Amperage circuit used in the likes of aftermarket Horns， Aftermarket Lights， Motors， Compressors etc.Dimensions:27mm x 30mm x40mm(including mounting bracket)/52mm (including branket and pins)Features: Integrated mounting bracket with M6 hole. Wiring diagram printed onto the top of the unit. Can be used for all applications (up to 30Amp). Package includes: 1 x relay