This universal 12V trailer wiring harness cable set (5 m length) with a standard 7-pin connector ensures dependable and safe transmission of lighting signals between the towing vehicle and trailer. Equipped with quick-fit bayonet connectors, it allows for fast, user-friendly plug-and-play installation to rear trailer lamps without complex splicing or soldering. The cable harness is also versatile enough to be adapted for standard trailer lights lacking bayonet sockets. With its generous 5-meter reach, it is ideally suited for passenger car trailers, boat trailers, and cargo platforms, delivering reliable connectivity for tail lights, indicators, brake signals, and license plate illumination in all weather conditions.