The halos can be bought from several vendors on eBay and the Internet. If I recall correctly, do a search for "3B Specialties" or something similar. They have a large selection of colors and sizes. I used 120mm for the main assemblies. A smaller size can be used if you use the outer ring. I used 71mm for the Fogs.

I went with bright white because they were in stock. I wanted orange like amber bulbs, but they were on a 4 week back order, and I just couldn't wait.

Oracle also sells them but at a much higher price and they look exactly same.

Any questions, give me a shout. James