"Doki" wrote in message
...
Why do they all hum?

More to the point - have you found any which get near their stated
equivalence in tungsten wattages? And, wouldn't it be nice if their warm-up
time could be significantly reduced.
I'm somewhat deaf so I can't hear mine humming or not.

--
M Stewart
Milton Keynes, UK
http://www.megalith.freeserve.co.uk/oddimage.htm