Features: The 26Ft 4 way trailer wiring harness features a Y shaped 5 wire designs with yellow leads for simultaneous left/right tail light connection, eliminating wire splicing while matching industry standard 4 flat trailer sockets. Built with 16AWG copper cores and PVC insulation, this marine grade trailer light withstands extreme temperatures ( 22°F to 221°F) and resists chemical corrosions for good performances in harsh environments. Ideal for boat trailer owners, ATVs enthusiasts, and cargo haulers needing to rewire utility trailers with compatible 4 way flat plugs. Connection brake lights, turn signals, and side markers effortlessly during trailer maintenance or roadside electrical repairs using the color coded 26ft main cable and 3ft grounding wire. This 5 wire trailer wiring harness ensures secure compatibility with campers trailers, flatbeds, and marine trailers through its corrosions resistant connectors and flexible PVC jacketed cable design. Specifications: Component:PVC+ Copper Length 7.92Meter/26Ft Interfaces: 4 Pin Voltages: 300Volt Wiring analysis:White: Grounding wire (negatived poles), Brown: tail light, Yellow: Driver's side brake light/turn signals, Green: Passenger side brake light/turn signals, extra (wire 5): Can be used for electric brakes or auxiliary equipment Package Includes: 1Set Trailer Wiring Harness note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.