12V 7 Pin Round Plug Female Metal Trailer Socket Waterproof Trailer Towbar Connector For Trailer Light Lamp Description:It made of aluminum, durable and can be used for a long time.Non-corroding, shock-resistant design. Suitable for 7-pin heavy european standard trailer.It can establishes a secure connection between your major vehicle and the additional trailer; transfers the electronic signal lights from the vehicle to trailer.Supplies power to your caravan, towing and truck.Bra pins in a durable metal housing.Waterproof for all road and weather conditions.For connecting trailer and power supply, for trailer lights.Specification:Material: AluminumDesign: 7-pinOperating voltage: 12VoltType of connection: Screw contacts7 Pin Lighting Connections method:PIN 1 - Yellow Wire (Left/H Direction Indicator)PIN 2 - Blue Wire ( Rear Fog Lamps )PIN 3 - White Wire ( Earth Return )PIN 4 - Green Wire (Right/H Direction Indicator)PIN 5 - Brown Wire (Right/H Tail & No. Plate Lamp )PIN 6 - Red Wire (Brake lights)PIN 7 - Black Wire (Left/H Tail & No. Plate Lamp )Package Included:1PC 7-pin socket box Round AluNotes:Due to the difference between different monitors, the pictures may not reflect the actual color of the item.Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement.Please leaving a meage before you give the bad feedback, if the products have some problems.