?Upgraded version Wiring Harness?It is different from traditional wiring harness, this light bar wiring harness add change light beam/light mode function. there are two button, you can switch the light mode throught button if you purchase dual color light. This is a new function that other traditional wiring harness doesn't have.(Search "B07Z61RHZB / B07TTFM1MC" to buy the new angel eye light bar and start your car DIY journey right now!) ??UPGRADE 14AWG EQUIPPED?This led light bar wiring harness is upgraded with 14 AWG sheathed by premium PVC, led wiring harness come with the relay and fuse. the length of led wiring harness from the relay to the light is 6.5ft/200cm with circlip. the length of light bar wiring harness from the relay to the control button is 9ft. the length power line is 1.6ft/50cm. ??LARGE LOAD CAPACITY?The led light bar wiring harnesses is suitable for all lights, its load capacity is up to 300W, The relay (12V, 40A) is also included. Built-in blade fuse against over current and short circuitwhich will regulate the power to be consistent and stable to ensure the safety of your vehicle electrical systems. and is compatible with any LED, hidden or halogen off-road Light belt, work light or auxiliary light, it fits for your 5'' 7" 10" 12" 20" 30" 40" light bars and so on. ??PLUG PLAY?Super high quality nature of the led wiring harnesses kit makes it a must-have gadget for wiring whatever lights to your vehicles. It have the relay and fuse container already, the 2 lead led wiring harness is easy to install, designed with 3 terminals can be used for muti-lights. And we provide 24-Hour Online Customer Service, our team will do our best to help. ??CAUTIONS AND RECOMMENDATIONS?We recommend professional installation the led wiring harnesses kit, please let professinal installer to wire the harness kit. If let the wire short circuit, the harness would melt and even caught a fire, we suggest that wrap all exposed wire with electrical tape to avoid a short circuit. Please make sure your light within power 300W, or it would got melt as well.