Shop Nilight Remote Wiring Harness for LED Light Bar Wireless Strobe Flash Work Light Driving Lights 12V 40A 14AWG Remote Controller On Off Switch Waterproof Power Relay Blade Fuse-1 Lead in high quality, support 2 Years Warranty. 12FT extendable wiring harness, with two sets of light output connectors, the wiring harness can hook up two strobe light bars within 300W at the same time. The black wire is connected to the negative pole, the red wire is connected to the positive pole.