Universal Fitment: The wiring harness is a good accessory for off-road vehicles, working vehicles, automobiles and boat that use a 12V DC power source. Basically any car battery will work on this wire harness. Just connect your lights to your battery and flip the switch. Product Features: 10ft wiring harness, 2 sets of connectors to light fixtures 40A/12V DC power relay, on/off switch with indicator light Product Contains: 1 x Wiring Harness, 1 x Power Relay, 1 x Blade Fuse, 1 x On/Off Switch. br/> Note: Maximum Wattage: 180W; Max Ampere: 15A Operating Voltage: 12V DC Power Please finish the installation by professionals or install the wiring harness under the guidance of professionals.