Brooks Bradley wrote:
I would remind list members that if one is investigating the use of
LED bulbs/arrays for
circulation improvement and/or topical pathogen control....we have
found that the red spectrum elements in the 660 to 680 nanometer range
are MUCH superior those in other ranges. They do not cost any more
than other colored...or clear bulbs.....but are immensely more
effective at circulation improvement. At least that has been our
experience.
Sincerely, Brooks Bradley.
That is correct. Which left me wondering how much "red" there is in a
white LED. This seems to answer that:
http://upload.wikimedia.org/wikipedia/en/4/48/White_LED.png
Apparently not a lot. I believe that much of the reason that the red
works so much better than the other colors is that the shorter
wavelengths are absorbed before they get much penetration. If you shine
a white light on your hand, what you see coming through will be red.
Marshall
---------[ Received Mail Content ]----------
*Subject : *Re: CS> LEDs & arthritis
*Date : *Mon, 19 Nov 2007 11:25:52 -0600
*From : *Clayton Family <[email protected]>
*To : *[email protected]
Now this sounds like a great idea. Did you just shine the flashlight
at your shoulder for awhile? And is there a link somewhere to link to
for more info in using LED's ?
On Nov 19, 2007, at 9:17 AM, Dave wrote:
>
> Linda
> Brooks Bradly had a number of postings on making and using LED
arrays
> for that purpose.
> One day I caught an infomercial on TV that was selling a flexible
> array that you could wrap around the affected area but they wanted
> something like $100+ for it so I soon forgot the whole idea.
>
> One day while getting groceries at br I noticed a flashlight that
> had 31 LEDs on the side of it to use as a flood light and 6 on
the end
> of it to use as a flashlight. At $29 I figured I could give it a
try.
> I used it on my sore shoulders one evening and got a good night's
> sleep for the first time in months.
> Dave
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