The sets of towing lights places like Harbor Freight, Northern Tool, and Tractor Supply sell are generally a good value for the price. Our set should last many years, no more often than I plan to use them. They all use a standard flat 4 pin connector, so there’s no wiring to do unless you need a different connector. My only complaint is this: the wires are all loose. The 8 feet of wire between lights just hangs there, all the wires separate, as does the 20 feet that runs to the tow vehicle. Considering the price, I still bought them but decided to wrap the wires so they would stay together. One could use plastic conduit to hold them all together, but I used about an inch of electrical tape every several inches and that seems to work quite well for less money.