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From: Alan McClure
Subject: Re: Best way to power array of LEDs?
Date: Fri, 04 Oct 2002 23:48:05 -0400
Organization: Posted via Supernews, http://www.supernews.com
X-Mailer: Mozilla 4.79 [en]C-CCK-MCD NSCPCD47 (Win98; U)
warren weber wrote:
> Jim Yanik wrote in message
> > DaveC wrote in
> > news:0001HW.B9C26E7400A7161B165FEAC0@news.covad.net:
> > > Have assembled an array of LEDs for use as a 3rd brake light in my
> > > car, configured as 4 rows of 9 jumbo LEDs, as of yet unwired. Of
> > > course the power supply will be 12 volts nominal (13.8 volts,
> > > maximum).
> > >
> > > My options, as I see them, are:
> > > 1) Wire individual resistors to each LED based on its operating
> > > current 2) Wire each row in parallel and connect one resistor based on
> > > operating current for 9 LEDs
> > > 3) Install voltage regulator to output voltage (ie, 1.3 volts?) to
> > > operate all LEDs in parallel.
> > >
> > > What is the best method to power these from an intermittent (whenever
> > > I press the brake pedal) power source?
> > >
> > > Other options for powering this array?
> > You can -BUY- LED 3rd brake lights,try JC Whitney.They might even have
> > at auto parts stores.
> > Are there LED direct-replacement bulbs for brake lights and turn
> > signals?(LED arrays)
> > --
> > Jim Yanik,NRA member
> > remove X to contact me
> There are direct replacement bulbs. I had found them on a Google search. Did
> not save location. Warren
Auto Zone sells them.
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