Review on 🚨 16-inch 12 Red LED Trailer Light Bar with Brake and Sequential Turn Signal - DOT FMVSS 108 Compliant - SAE S2I6U2PS Approved - IP67 Submersible - Running Marker ID Rear Trailer Tail Light Bar for 80-inch Utility Marine Boat Trailers by Steven Cox

I fitted this light to our 5th wheel which has a 2 wire brake and turn signal like most trailers. Connected to our tractor with only auxiliary power, everything works perfectly. The uniform turn signals are nice and bright. The problem occurs when the engine is running and the voltage at the tail light increases by 1.5 volts. At this point, the turn signal only flashes through like a turn signal. I tried the 2 to 3 converter but it didn't work. I didn't have enough time to work through the issue but the seller said it could be a turn signal and explained the requirements for a voltage break. I give the seller five for trying to solve the problem. They even offered to replace it with another device to check. I hope to keep trying to get it working after some of the health issues have passed. At the moment the three position lights and the brake lights work well. Nice and bright. Hope to get a job in the future. The tow truck is a 2017 F450 with all LED headlights and the trailer is with all LED headlights.