Plug 7 Pin Tow Bar Socket Electrical Wire Connectors American Style. Durable Material Construction: Made of copper and plastic with enhanced brass connectors for better resistance. Water and Dust Protection: Plastic housing with spring-hinged design protects wiring connectors effectively. 12V Voltage Compatibility: Designed for 12V power supply systems suitable for trucks and trailers. Comprehensive 12-Month Warranty: Includes a full 12-month warranty covering mechanical defects and support. Versatile Lighting Connection: Connects taillights, brake lights, reverse lights, turn signals, and auxiliary power. 7-to-4 Pin Conversion: Converts standard 7-pin car sockets to 4-pin plugs for universal compatibility. OEM and ODM Services: Offers full customization, minor customization, and flexible customization options. Fast Response Support: Customer inquiries are replied to within 1 business day excluding weekends.