allan wrote:
I have been replacing my 60s with cfl 13 which say they are
equivalent, they are not the 60 is much brighter. Has anyone else
noted this?

It seems to vary greatly depending on the specific CF, the temperature,
the length of time it has been on and the actual voltage.

Frankly all the CF I have bought recently seem brighter than claim to me,
at least once the warm up. I kind of like that slightly less bright light
and a gradual brightening.

--
Joseph Meehan

Dia 's Muire duit