Features: This is a 12V trailer connector plug. It supplies power to your towing and truck. It is suitable For: 7-pin heavy European standard trailer. Made of aluminum, it is durable and can be used for a long time. This 12V trailer plug connector with 7 pins is a great option for boats and it's also great to be used on an RV, etc. Function: 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). Specifications: Design: 7-pin Operating Material: Aluminium Colour: Silver Voltage: 12V Applicable vehicles: for trailers, RVs Size: Length: 9.9cm(3.9in) ,Wide: 5cm(1.97in),High:4.1cm(1.61in) Quantity:1Pc Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (Without retail package) 1Pc x Durable 7 Pin Aluminium Alloy Plug Trailer Truck Towing Electrics 12V Connector (EU Plug) hello, guys, thank you for visiting my store.There are so many useful and cheap item in our store. Welcome to visit.Hope you have a nice day! _x000D_