This 11 foot3.35 meter wiring harness is designed to connect a single LED light bar to your 12V electrical system. It features battery terminals on one end and a Deutsch connector on the other to connect to the light. It incorporates an inline fuse holder, a 12V relay, and a waterproof switch. This harness is compatible with the following RIGID LED Lights 20 in. - 50 in. SR - Series PRO and 10 in. - 30 in. E - Series PRO Light Bars.