New upgraded converter adapts import and domestic vehicles with separate turn and stop lights, 3-wire system to standard trailer taillight wiring (2-wire system). Rated for up to 2.1 amps for turns/stops circuits and up to 7.5 amps for taillight circuit. Works with most LED/incandescent/standard bulbs (vehicle & trailer) and most vehicles that have a multiplex system for lighting. Prevents feedback from trailer to the vehicle system. Priced each.