From: "warren weber"
Subject: Re: Best way to power array of LEDs?
X-Newsreader: Microsoft Outlook Express 5.00.2014.211
Date: Fri, 04 Oct 2002 20:57:53 GMT
NNTP-Posting-Date: Fri, 04 Oct 2002 20:57:53 GMT
Organization: AT&T Worldnet
Jim Yanik wrote in message
> DaveC wrote in
> > 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