Item Type: Trailer ConnectorMaterial: PlasticInput Voltage: 6-24VWiring Reference Information:pin 1-yellow wire (left/hand direction indicator)pin 2-blue wire (rear fog lamps)pin 3-white wire (earth return in-situ turn signal display)pin 4-green wire (right/h direction indicator)pin 5-brown wire (right/h tail & no. plate lamp right tail lamp and card frame lamp display)pin 6-red wire (stop lamp display)pin 7-black wire (left/h tail & no. plate lamp left tail lamp and card frame lamp display)Package List1 x Trailer Connector AdapterPlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.1This electrical converter allows to change a european style 7 pin adapter to a US style 7 pin connector. 2Extension cable adaptor for electrics compatibility of vehicle and caravan/trailer that are towing. 37 pin trailer cable adaptor, support all road lighting (including reverse), can ensure the safety of towing process. 4Made of premium plastic for superior quality and detail, resistant to high and low temperature, acid and alkali, durable to use. 5Wide application, suitable for commercial vehicle, tow truck, caravan, saloon car, vessel and more.