Compatibility: This 7-pin male trailer plug is compatible with any European standard 7-pin female plug adapter. Signal stability: High quality copper core contacts are used to ensure a fast connection , safe and stable. 12V 24V Universal. Safety and reliable: Pass CE, ROHS certification. The housing is made of durable ABS to prevent rust or corrosion. Easy to install and replace: Plug and play "so easy". Easily establish the lighting connection between the main vehicle and the additional trailer. Screws on the back of the converter, easy to replace damaged parts. Range of applications: The European standard trailer electrical connector ensures a stable connection for car turn signals, parking lights, running lights. braking and fog lights, to ensure safer driving.