chaosmage comments on My simple hack for increased alertness and improved cognitive functioning: very bright light - Less Wrong
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That's only true if they're built to tolerate heat as well as incandescents have to. Do you know they are?
Ooh ... good question. I have no idea.
Mind you, my experience of CFLs is that they blow out well before their claimed lifetime anyway on the crappy electricity we have around here. But I really, really like having daylight spectrum bulbs.