"Dave Plowman (News)" wrote in message
...

I'm not aware of any CFL which gives a resonably continuous spectrum
output. For that you'd need a filament type or decent fluorescent.

I'm not aware of any fluorescents that produce a continuous output without
spikes. they are the same technology as CFL so i fail to see why they would
be different.

CFLs
all have spikes and troughs in the spectrum that can do weird things to
some colours. One make could well be different to another, too.