Where we live, we get the warm moist air from the Gulf to the south, the cold air down from the north, and various fronts from the west, so fog is pretty common here. I don't go 'off-road', but my Jeep is used on the beach at Padre Island. I wanted to keep the stock driving light look, so I went with https://www.amazon.com/gp/product/B002E2WMVW/?tag=wranglerorg-20 , Hella halogen bulbs. I found that using the white driving light in the fog just reflects back into my face, not so much with the amber / yellow.
