The way I did it was I took 1x1/4 flat stock aluminum. I used a bench vise to form my "U" for the bracket. I then drilled threw the center of each side of the light housing. I used 1/4 bolts and in the inside of the light housing I used fender washers just to help support the sides a little better... Most of mine held up good for two years until I replaced them with LEDS..