Review on 🔌 Fulton 20141 7-Way Flat Pin to 5-Flat Converter by Caleb Eichbauer

Of course this plug doesn't say it's LED compatible but for the price I figured I'd give it a try too. I have the same results as others. I have a 2010 GL550 and sometimes I plug it in and have no burned bulb warnings and everything is fine. In other cases, it will give a message even if all the headlights are working properly on both the car and the trailer. As long as everything works I'm happy with it and it will work until I decide to buy one that's designed for compatibility. I had to cut off the "closed" end of my trailer's fork to connect it to this, but it can be a bigger problem at the trailer end and it doesn't affect operation or attachment.