Item Type: Trailer Socket <br>Material: Metal <br>Standard: 7 Pin <br>Connection Definition: <br>1 Pin: Yellow wire turn left <br>2 Pin: black wire reverse headlights <br>3 Pin: White wire bottom line <br>4 Pin: Green wire turn right <br>5 Pin: Blue wire Service brake <br>6 Pin: Red wire Brake light <br>7 Pin: Brown wire taillight, measuring mark light <br>Application: <br>Suitable for RV, caravan, trailer<br>1、Protective Function: Provide additional protection with spring cover and high dust resistance to avoid damage to the external environment when the adapter is not in use. <br>2、Hidden Terminal Block: This trailer socket has hidden terminal blocks. This helps protect the splicing points of the wires from dust, rain, and other threats. <br>3、Premium Material: This trailer socket is made of premium metal material, which has strong strength and high performance. And it is stable and sturdy. <br>4、Wide Application: It can be used to connect tail lights, brake lights, reverse lights, turn signals, trailer brakes and auxiliary power. <br>5、Easy to Install: This trailer socket is easy and convenient to install and use, which has no complicated operation for you.1 x&nbsp;Trailer Socket