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Re: [APD] LED Technology. And now back to CF



The underlying UV wouldn't be visible to humans. The diff is that the diff phosphors in the flo bulbs give off photons that peak at relatively narrow ranges. So the output covers diff parts of the spectrum than the photons from an incandecsing tungsten wire.  Of principal imprtance is that the tungsten gives off a broad range over the spectrum, highest in the reddish range. The flo bulb will have multiple narrow peaks, depdending on the mix of phosphors, plasma temperature, amount of mercury, etc.

 
sh
 
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show up, show off,
There are still a few weeks left to enter The AGA 8th Annual International Aquascaping Contest.
 
Entries can be made until September 30, 2007
Info is at 
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----- Original Message ----
From: Chris Hotte <ecwh73 at gmail_com>
To: aquatic plants digest <aquatic-plants at actwin_com>
Sent: Tuesday, September 11, 2007 3:55:15 PM
Subject: Re: [APD] LED Technology. And now back to CF


Jerry Baker wrote:
> The warm white CF bulbs are indistinguishable from incandescent lights. 
> For some people. just knowing they are there bothers them.
I have some warm white in the kitchen. I was experimenting with GE 
daylight CF bulbs, which are much more blue. She has accepted warm white 
in the kitchen, but even I can instantly tell the difference between WW 
CF and standard incandescents. Some of the underlying UV must get 
through and fluoresce. I find myself to look to be much more of a shady 
character under WW CF bulbs. *grin*. It's not in my head! Really!

- C



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