> Hi Art,
> I've been waiting for someone who knows more about this sort of thing to
> answer but I'll add my 2cents worth.
>=20
> Fluorescent lights do run warm, so you can expect some output. The tubula=
r
> types have heaters in them to get them started so this could be expected =
to
> show up as well. CFLs start using a high voltage so they could be less of=
 a
> problem. The glass itself should attenuate the IR somewhat, but I don't k=
now
> how much. OTOH, as it warms up, I'd expect it to emit some long wavelengt=
h
> IR itself.
>=20
> Mostly guesswork though

I have had problems with my TV IR remote when turning on CFL bulbs in the s=
ame room. Until the bulbs warm up and reach full output brightness it seems=
 they emit a large amount of IR right in the band used for 'normal' IR diod=
es. This floods the receiver with IR light and operation stops until the CF=
L has warmed up.



--=20
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