LemonMelon said:We got a couple of free CFLs in the mail today. The advertising sounds promising enough, but I can't help but think they're a little weaker than the incandescents. And what's all this I hear http://forum.interference.com/newreply.php?s=&action=newreply&postid=4860245
U2 Feedback - Reply to Topicabout them containing mercury? That can't be good.
About 5mg of mercury, not that much. For example, if in Germany all CFL's were replaced by incandescents the coal used to power those lamps would emit 4.5 tons of mercury per year. But it's a reason not to give a CFL to normal waste.
When you switch on the light its weaker, but pretty quickly it's about as good as incandescents.
If you need exceptionally good light you would be better off with other bulbs, but for normal use a CFL should do.