This harness is designed specifically for the Baja Designs OnX6 Plus and the S8 light bar. The harness is rated for x1 10 inch-20 inch OnX6 light bar or x1 10 inch-30 inch S8 light bar. We spend a substantial amount of time developing these harnesses to ensure they are safe and reliable for your adventures. The installation of this harness is simple the harness has positive and negative terminals to be ran to your battery. The harness has 1 plug for the OnX6 Plus or S8 that easily plugs in using a weather resistant connector. The rest is a matter of routing throughout your vehicle.