I figured someone here would know the answer: I bought a self-ballasted mercury vapor bulb to try saving a memorial plant that is very important to me. It's a 100w bulb meant to be used for plants or animals needing UVA and UVB in addition to heat. My plant wasn't doing so hot with these shorter days and the halogen wasn't cutting it, but the results with this bulb have been fantastic. The downside is the heat this thing puts out has destroyed the desk lamp I've been using, despite the fact that it meets/exceeds the wattage rating of the bulb. It has a porcelain socket, but the wiring and switch are melting and I won't run this thing unattended anymore because of it. What kind of fixture will stand up to these bulbs?