Ian Jackson wrote:
In message , John Williamson
writes
Ian Jackson wrote:
Mercury? These days, in the home?

So you don't use CFLs, then?

Haven't they changed their minds, and modern CFLs DON'T contain mercury?

Not according to Wikipedia, but even ignoring Inserts tongue in cheek
such a reliable source,Un-inserts tongue the way they work is by
having an arc in a low pressure gas which generates UV light, which the
phosphor turns into visible light. The only variable I'm aware of is the
amount of mercury, which has been cut over the last few years.

LEDs don't contain mercury, and are about the same efficiency overall at
the moment, and improving all the time. Incidentally, most of them work
by having an ultraviolet LED illluminating a phosphor....

--
Tciao for Now!

John.