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Re: Compact Flourescent Brightness



In article <[EMAIL PROTECTED]>, Marrow wrote:
> I recently purchased a couple GE CFL bulbs, and noticed an interesting
> phenomenon.  When I first turn these bulbs on, they are much dimmer than
> expected, but over the course of 30 to 60 seconds they become noticeably
> brighter.  Is it normal for flourescents to get brighter as they warm up?
> I've never noticed this before with other flourescent lighting.

yes, it's normal and mine all do it.  you can measure it with a light
meter.

> 
> Also, does anyone make a CFL bulb which is the equivalent of a 75W
> incandescent?  The ones I've seen have all been 60W and 100W equivalents.
> > M.  > > 

there s/b, maybe not in the swirl shape, but none of these, imho, are
more than 70-80% of the claimed lumen output.  the manufacturers have
some formulas that allow them to claim 4-5x the output per watt over
incandescent, but the real figure is about 3x.  --Loren




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