In article ,
"Dave Plowman (News)" writes:
In article ,
Steve Firth wrote:
One advantage seems to be that they produce less heat. I've used CFL
replacements for R25 spots in fittings at Mrs F's shop and also in the
house. The only headache IMO is that despite the claims, a 14W CFL does
not provide as much light as a 25W incandescent bulb.

In theory it should produce more light - as less than double isn't one of
the extravagant claims. Perhaps it's more to do with the optics and beam
concentration.

Compact fluorescents have a large light source, and that makes
for a poor spotlamp.

I've got one of the expensive RO80 replacements, and if
anything it produces more light than its filament predecessor. Can't
really comment on the beam pattern as I have barn doors around it. ;-)

The 23W GE Genura produces more light than a 100W R80 flood lamp
which it replaces (and AFAIK, is still the only compact fluorescent
to do so). However, it's a very different design to any other
compact fluorescent (which I've described in detail in previous
posts).

--
Andrew Gabriel