dave wrote:
No, I'm not a business - just wondered about the domestic side of it. My
personal guess is that even though the amounts are small, the increasing use of
LL (didn't know they were called compact fluorescents) may make this a green
issue.

They are compact fluorescents, but they are not the only compact
fluorescents.
"Retrofit compact fluorescents" is a more correct term which is
sometimes used,
implying they are designed for retrofitting in place of older lamps.

There's no definition of exactly what "compact fluorescent" means, but
it is
generally applied to all modern tubular fluorescents that use a mercury
amalgam
pelet for accurate control of the mercury vapour pressure. This
encompasses
most fluorescent tube types which have appeared in the last 30 years.
The most
obvious effect of this is the run-up time such lamps require to reach
full
brightness. A less obvious effect is that they contain very much less
mercury
than the older tubes, such as the T12 (1.5" diameter) ones. Another
common
property of compact fluorescents are thinner tubes, which means less
phosphor
required so more expensive phosphors can be used.

--
Andrew Gabriel