Shop Nilight Remote Wiring Harness for LED Light Bar Wireless Strobe Flash Work Driving Lights 12V 15A 16AWG Controller 5PIN Switch Waterproof Power Relay Blade Fuse-2 Leads in high quality, support 2 year warranty. 12FT extendable wiring harness, with two sets of light output connectors, the wiring harness can hook up two strobe light bars within 180W at the same time. The black wire is connected to the negative pole, the red wire is connected to the positive pole.