40A 12V Universal Wiring Harness Kit for Led/HID Work Light or Bar- (Two Lead) Segmented for easy installation and running wires to the dash, Heat shrink tubing on connections 30A replaceable fuse, 40A replaceable relay, Large terminals to hook to the battery Deutch female connector to hook to your lights. Includes a mating male Deutch connectors (without this you would have to find your own or cut off the connector.) Lighted Rocker Switch with insulated spade connectors for quick swap out to a switch of your preferences. This is a self powering harness. The system is always hot so you can turn your lights on and off independent of the vehicle being on. To change this you remove the power wire to the dash switch and splice it into any circuit you want under the dash, ignition on, lights on etc.