Review on 🚛 Catinbow LED ID Light Bar, 17” 3-Light, 9-LED Clearance, Surface Mount, Red Side Maker & Rear Light for Trailer Truck 12V by Jon Dunn

Installed and found it didn't work. I am about to return the original device and have decided on a replacement device. I will update my review once the replacement arrives. Update: The replacement unit arrived quickly and I hooked it up directly to a 12v battery to make sure it worked. That didn't work at first either. I reversed the polarity (white wire to battery + and black wire to battery -) and it worked. The white wire already has a ground terminal crimped on it, so here's what I did to fix the polarity issue: There are three black molded connectors on the back of the flashlight. They can be pulled out and detached from the three lights. I flipped the entire harness and reconnected them, reversing the polarity as they were sent. Now black goes to + and white goes to ground. Good to go!