Moravartisan 12 Pin to 7 Pin Trailer Light Adapter Specification: 12 way and 7 way brass terminal Product Length: 360mm, Cable Length: 210mm Voltage output: 12V Main function: connect and transmit electrical signals between the tractor and the towed vehicle Features: 12 Pin to 7 Pin Flat Connector 12 Pin Flat Male Plug to 7 Pin Flat Female Socket; Reasonable hole size design correspond to different lines; Used to display trailer signals by connecting an external trailer signal light cable; Suitable for RV, Truck, commercial vehicles, trailers. Dust Cap Equipped with rubber dust cover and waterproof sealing ring to prevent water ingress in rainy days and protect the terminals from water and dust. Quality construction All-weather and all-season durable performance for power connection during towing a trailer; Manufactured from premium materials for a long service life; Designed to apply in extreme weather conditions. Plug and Play Secure grip for easy connection and disconnection; The adapter can not loose and fall off from the trailer.