Description:The wiring harness for LED off road light is the perfect accessory for off road automobiles, working vehicles, and most automobile that could use a relay to power specific equipment. Consisting of a 40 Amp relay, an illuminated on/off rocker switch, and more than 10.7ft of wiring, this wiring harness for LED off road lights simplifies the installation process of powering various equipment on automobiles.Features:Illuminated on/off rocker switch.12V 40A power relay.More than 10.8ft of wiring.High characteristic, stable performance.Universal fit for most vehicle.Specifications:Material: PlasticColor: BlackRelay: 12V 40ACable Length: approx. 3.26m/10.7ftPackage Weight: approx.209gFitment: UniversalPackage Included:1 * Fog Light Switch Wiring KitInstallation: (Just for reference)1. connect the the red+ wire from the fuse to battery +; connect the black wire from the reply to the battery -.2. connect the wire for lights bar from the relay; (red/black correspond to the wire of lights bar).3. connect the red +/black- wire of the switch to battery or any place of your car system to get power for the switch.4. turn on on/off button of switch to test the lights bar.Notes:1. Easy to install, but professional installation is highly recommended!2. Please allow 1-3cm error due to manual measurement. Thanks for understanding..