LED Light Bar Wiring Harness-Light Bar Wiring | Agri Supply This LED light bar wiring harness is compatible with 150 watt double light bars that measure 7-1/2, 13-1/2 or 21 inches. The plug and play feature allows you to install and use this LED light wiring harness right away.Brand: ASCPrice: $24 Amazon: dual wiring harness Northpole Light LED Light Bar Wiring Harness, 12V 40A Off Road Jeep LED Light Bar On Off Power Switch Relay Wiring Harness for LED Work Lights Driving fog lights. 4.3 out of 5 stars 183. $8 $ 8. 80. Get it as soon as Tue, Oct 15. FREE Shipping on orders over $25 shipped by Amazon. Wiring Harness Kit | Nilight Led Light To correctly install your Nilight led, we have both 16 gauge and 14 gauge wiring harness kit for your options. Wiring harness has everything already include on/off rocker switch, blade fuse, relay, and wire. All is plug and play, super easy!