They emit heat, but they don't emit it at all. I swapped out the lightbulbs because I figured our theater room would be nice and dark and would still keep our ball python warm, but at 6 inches away you wouldn't feel any heat from them at all. You must be very close. I'm not going to risk getting burned during the research, so they'll have to go outside and light the lightbulbs again. Rather an unhappy Herpa.
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