Features： 1、Charging Function: Connect the trailer plug to the vehicle socket to turn on the taillight, brake light, turn signal, practical for emergency use. 2、Long Lasting and Stable Performance: The trailer converter is rust resistant, durable housing, heavy silver metal joint construction, not easy to damage, brass terminals, with excellent electrical conductivity. 3、Safe and Reliable Connection: The to connector easily snaps into the trailer's existing socket and is securely secured, with no wiggle room and no loose accessories. 4、Wide Compatibility: The 4pin to 13pin design of the Converter adapter ensures compatibility in most environments, suitable for RV, trailer, caravan, boat. 5、Easy Installation: The 4 pin to 13 pin trailer connector features plug and play design for hassle free installation with no cutting or splicing required. Specification： Item Type: Trailer Converter Material: ABS, Brass Fitment: Suitable for RV, Trailer, Caravan Boat Package List： 1 x Trailer Converter