Yes, I've seen these 'bulbs' and have two of them. They are a heating coil wrapped around a ceramic cone inside of a Par-30 glass reflector. You can get them from www.uvheat.com and www.reptileuv.com for $25. They're actually manufactured by these and a couple other companies under license from Westron, the company that makes T-Rex Active UVHeat bulbs as well as the same bulbs for Reptile UV and Active UVHeat. I've seen them more expensive on some other websites and can't figure why they're almost double the cost. Oh yeah, they're great heaters - just remember to use a thermostat.
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Matt Campbell
"I only went out for a walk and finally concluded to stay out till sundown, for going out, I found, was really going in." John Muir