Enhance your wiring system capability when you add the KC HiLites Add-On Light Wiring Harness to your off-road vehicle. Adding this wiring harness lets you operate two sets of KC HiLites for greater visibility while traveling back roads. This allows you to see obstacles in the road much quicker.The KC HiliLites Light Wiring Harness includes a 40 amp relay switch with easy installation, giving you the ability to switch between sets of KC HiLites. The Relay Harness Kit comes with all wiring and switches to operate additional KC HiLites.