Usually, fog lights have only one lead. The other wire is connected via a metal mounting bracket. Because of the risk of dazzling other motorists, their use is legislated and controlled. In extreme weather conditions, it is essential to have good fog lights. A month ago, these headlights had reached the end of their useful life in my car. I found all the necessary dimensions for my make of car and sellers who sell fog lights at
https://fogbulb.com/ . I hope you will listen to my opinion.