[Boatanchors] CFLs

sdaitch at kuw.ibb.gov sdaitch at kuw.ibb.gov
Fri Dec 31 15:41:32 EST 2010


John,

I don't doubt the issues with colors,
I think I recall you made a comment
quite awhile back about not being able
to discern some certain colors under
CFL lighting.  

I suppose where I use the CFLs, outside
perimeter lighting, I am not particularly
concerned about true color rendition.

Philips calls the other lighting "color"
as their "cool daylight."  Managed to 
sneak off to the bulb department at Lulu
Hypermarket while getting some lox and 
bagels.

Sheldon

----- Original Message -----
From: "J. Forster" <jfor at quik.com>
Date: Friday, December 31, 2010 6:02 pm
Subject: Re: [Boatanchors] CFLs

> Any CFL has a spectrum that is nothing like Plankian (Black Body
> Radiation). And they are nowhere near "white" They are all full of 
> giantspikes and useless for evaluating colors.
> 
> -John
> 
> ================
> 
> 
> > The Philips branded CFLs are available
> > in "warm white" which approaches the
> > same color as an incandescent bulb
> > and a much whiter version, "daylight" (?).
> >
> > I don't have any of the "whiter"
> > versions here to note the actual shade
> > Philips calls 'em.
> >
> > 73
> > Sheldon
> >
> > ----- Original Message -----
> > From: Jack Taylor <jack at n7oo.com>
> > Date: Thursday, December 30, 2010 10:15 pm
> > Subject: Re: [Boatanchors] CFLs
> >
> >> My experience with CFL's is not nearly as extensive as some on
> >> here but I've
> >> found
> >> the 99 cent variety to have a harsh light, take a couple of
> >> seconds to
> >> ignite and to
> >> sometimes fail within a year.  Had much better luck with the GE
> >> brand sold
> >> by
> >> Wal Mart.  These ignite almost instantaneously, have a pleasant
> >> glow and
> >> thus far
> >> after a year, no failures (yet).  I've not noticed any RFI.
> >>
> >> Jack - N7OO
> >>
> >
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> 
> 
> 



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