From: Watson 'Atto Parsec' Name
Subject: Re: luxeon star leds
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Date: Wed, 27 Nov 2002 07:50:38 -0800
NNTP-Posting-Date: Wed, 27 Nov 2002 08:48:55 PST
Organization: InReach Internet
In article ,
firstname.lastname@example.org talked about...
> On 26 Nov 2002, Watson 'Atto Parsec' Name said:
> > The Luxeon has a _built-in_ heatsink. Somewhere I read that it
> > stabilizes at 60 deg without any external HS.
> The Luxeon *star* comes with an emitter mounted on a 1 square inch metal-
> core PCB, and it can be run without additional heatsinking (though it's not
> recommended). The Luxeon emitters do not have heatsinks and definitely
That 1 inch square aluminum *is* a heatsink, maybe not as much as a finned
one but definitely more than the emitter just by itself, which, by the way,
you can also buy.
The whole back side of that aluminum is clean fresh plain metal (well other
than the part number printed on it), and will act as a 1 square inch
surface for dissipating heat. And yes, it does get warm.
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you put NOSPAM in the
Subject: line. alondra101 hotmail.com
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Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html