This 14 foot/4.3 meter wiring harness is designed to connect a pair of D-Series OR SR-Q LED lights to your 12V electrical system. It features battery terminals on one end and Deutsch connectors on the other to connect to the lights. It incorporates an inline fuse holder, a 12V relay, and a waterproof switch. This harness is compatible with the following RIGID LED Lights: D-Series, SR-Q Series PRO Driving or Drive Diffused Optics.