I upgraded my 64.5 just two weeks ago to the Mustang Project led package that uses Hella glass housings and Cree leds. The LEDs use an H4 plug, so no modifications are necessary. It was a simple swap that took all of 20 minutes in total. These are way brighter than the halogens I took out and provided a much needed improvement in visibility. I can see much further down the road as the light output is easily twice as great. It’s a nice bright white light, but not obnoxious to other drivers. The glass is not curved as much as the old halogens, but a casual observer would never tell the difference. I’m quite happy with them and glad I made the swap.