Just kind of occurred to me that since I have a pile of various Cibie and Marchal and other halogen lights that I'd try a set of them as driving lights after installing HID's into them. Almost all the older lights use H1 or H3. What I'm wondering is whether it would be safe to mount the lights into plastic housings as I'm sure I have at least two sets of the older Jackman lights that used 100w halogen sealed beams. I always liked the Jackman lights as they are very solid and don't bounce around at all. I would think that if they can handle 100w of halogen they could handle 35w of HID but I thought I'd ask.