The Blazer wiring harness is compatible with any LED, HID or halogen off-road light bar, work light or auxiliary light. The 9 ft. harness features a quick connect plug making it easy to quickly change-out the light. The weatherproof plug can handle up to 200 watt and has a tight seal ensuring your light stays connected. The wiring harness comes equipped with a fuse, relay and illuminated on/off switch. 40 A relay. 30 Amp fuse holder with cover. Designed for use with one light under 200 watt. Quick connecting plugs- harness and lights come with waterproof quick and easy connecting plugs (no soldering, wire nuts, etc. needed).