"Eeyore" wrote in message
...
You need at least a 23W CFL to match the output of a 100W incandescent.

Ony for a good one at the start of it's life. They get even dimmer with use
though.

The table here...
http://en.wikipedia.org/wiki/Incandescent_lamp#Power

Shows a 100W incandescent providing 1700 lumens.

In comparison some new CFLs I have claim only 1100 lumens for an 18W and
1200 lumens for a
20W.

The 11W CFLs claim 600 lumens and that makes them only slightly brighter
than a standard
40W bulb instead of equivalent to a 60W as claimed.

I do wish they wouldn't make these silly claims for them.

Me too, and those equally silly 8,000 hour claims.

MrT.