[Ronja] US source for drop in replacement of HPWT-BD00-F4000

[Karel Kulhavy]

On Thu, Aug 02, 2007 at 02:33:22PM +0300, stoiko at mail.bg wrote:
> what are the implications of "only 35mA"

The type designator is "SPL300CWE4K", WE4K like weak, lol :)

If it has the same efficiency as the Lumileds one, then it will have only 50%
of the output that means 70% of the range. More likely it has worse efficiency
because Lumileds are really good if not the best in the world.

If someone wants to take the pain calculating those annoying millicandelas into
lumens by translating the spatial graph into a numeric table and then
integrating it with GNU R and calculating the lumens and quanta per symbol and
steradian, then the figure could be calculated precisely.

I also suspect the pattern to be quite different from Lumileds, so it might
need to be measured with the lenses again using Ronja Benchpress.

I wonder what this Ledtronics is.  Ledtronics doesn't even have an article on
Wikipedia. Their homepage style makes an impression of a garage company on me.

What's the problem with Lumileds? Ondrej Tesar used to have them and send them
by post, doesn't he have then anymore?

CL<

> 
> 
> ????? ?? ????? ?? Karel Kulhavy <clock at twibright.com>:
> 
> > On Wed, Aug 01, 2007 at 09:17:23PM -0400, Eric Carson
> > wrote:
> > > http://www.ledtronics.com/ds/L200-E3K/
> > >
> > > Link beneath "High-Flux SpiderLED Discretes"
> >
> > It has only 35mA forward current.
> >
> > CL<
> > >
> > > --
> > > Twibright Ronja mailing list http://ronja.twibright.com
> > > Ronja at lists.pointless.net
> > > http://pointless.net/mailman/listinfo/ronja
> >
> > --
> > Twibright Ronja mailing list http://ronja.twibright.com
> > Ronja at lists.pointless.net
> > http://pointless.net/mailman/listinfo/ronja
> >
> >
> 
> 
> 
> 
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