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Old 06-06-2009, 03:42 PM   #33
pdurrant
The Grand Mouse 高貴的老鼠
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Quote:
Originally Posted by Steve Jordan View Post
Halogens are much hotter than I-bulbs... they waste a LOT of heat compared to the light they put out.
Halogens do run the filament at a higher temperature. And they do get hot, because they are so much smaller than normal incandescents. But for the amount of light they produce, they give off less heat than a normal incandescent. (Otherwise they wouldn't be more efficient, which they are, at the lamp.)
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