like stated above, you either have to use a wrap of tape, or silicon the bezel and lens in if you get the dual round ones that need the 25w bulbs, i've seen 2 different sets that lost that stuff after a ride or 2,
i opted for the rectangular style, 55 watts each, i used one on my sons, and slicks boy is running the other one, i kinda like the way it kept the stock look