"keith" wrote in message
...
I have a ceiling lampshade that says "40W max". But a 40W conventional bulb
is too weedy.
Is it OK to put in a 20W flourescent, supposedly = 100w, based on the
assumption that the 40W refers to 40W of heat from an old type bulb, with
flourecents running cooler?

Or are there other things I should watch out for?

Should work OK, but in my experience the bulb I used poked out the top of
the shade and shone directly in peoples eyes, rather than being diffused by
the shade. Solution was new light fitting, that allowed upto 100W bulbs.