I have been searching the web for rectangular fog lights but I can only find round lamps. I don't like the appearance of the H-D version that clamps onto the lower part of the crash bar and ya have to run the wire exposed. I like the size of the rectangular lamp that H-D has been selling for the past ten years or so, but it would need to mount on the fairing brace that attaches to the crash bar and be LED.
Someone on here had a square LED light mounted between the forks right under the fairing. Custom built the bracket and all, I love it, wonder if he'd sell a Kit.... Not positive what kind of light spread it does though... I'd love more light to the sides, especially in the corners.