I recently bought a set of new old stock yellow foglights on steep discount and much to my surprise when I opened the packaging to install them I found that it was not the lens that's yellow but the reflector insides that's yellow. The original packaging was missing so I don't have a lot of information about them except that they use H3 55W bulbs and have SAE F-88 on the lens, they look like they've been bouncing around from warehouse to store for a while and got repackaged into a plain brown box with a price tag somewhere along the way. I've never ran across lights with a colored reflector before, only colored lenses, I'm curious what the advantages and disadvantages of a yellow reflector is versus a yellow lens. For what it's worth they do at least have a proper fog pattern and the output seems OK considering their diminutive size.