(Dave Houston) writes:

Here's a chart (with pictures, yet) showing some actual measurements of
various types of lighting.

http://www.mge.com/home/appliances/l...comparison.htm

"Josepi" wrote:

LEDs are still reported to only be slightly more efficient than incandescent
bulbs. On top of all that the more efficient ***white*** LED bulbs are made
with phospours, similiar to CFL bulbs. I beleive the mercury is not there as
the electrical energy is converted, the first time, by LED technology.

Interesting point on the graph is how much better linear fluorescent
can be than CF... also that metal halide basically starts where LED
leaves off.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)