"Andrew Gabriel" wrote in message
...
A 30W compact fluorescent is likely to get too hot in a 60W
fitting. The fitting won't come to any harm, but a compact
fluorescent won't be happy running anywhere near the temperature
of a regular bulb and the control gear might not last as long.
A 15W one would probably be similar light output to a 60W lamp,
so you might try a 20W one, or even a 23W one.

I think this may depend on which way up the CFL is mounted. As you say,
it's the control gear that will overheat if anything, but if mounted such
that heat can be more easily dissipated it will last longer than if trapped
upside down under a lampshade.