These lights are so nice you can drive without low beams if the fog was so bad.
They are plug and play, you order the light for your truck, the light is the same but the bracket are different for your application. You assemble the light to the bracket provided with 2 allen screws. The allen screws are also how you adjust the light up or down.
Then place new assembled fog light into bumper using same 3 screws that you just removed.
Then the OEM plug connects to the harness connector of the light. Installation time 5 minutes. You remove the lower inner liner of the fender to gain access to the fog lights.
These are the best lights on the planet IMHO.