This item helps converts the 13-pin socket of your car to the 7-pin female socket. Used for connecting the car to brake lights, side lights and so on. Suitable forAustralian standard trailer, commercial vehicle, semitrailer, etc. Features - Color: Black. - Material: Brass - Size: 6.3x7.8x3cm. - Australian Standard 7-Pin Flat Female Trailer Socket/Plug. - Provides connections for indicators, side lights, brake lights, rear lights and fog lamp. - brass and plastic housing, durable in use. - Works perfectly for caravans, trucks, RV, boats and trailers. - Easy installation, no additional work needed. - Dear buyer, due to lighting effect, monitor& 39;s brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand Thank you Specifications: Item Type:Electrical Plug & Sockets Input: 12V Pin: 7 7 Pin Flat Plug Functions: Pin1 Yellow Left Turn Indicator Pin2 Black Reversing Light Pin3 White Earth Return Pin4 Green Right Turn Indicator Pin5 Blue Aux Brakes Pin6 Red Stop Lights Pin7 Brown Rear Lights, clearance and side marker lights