[s-cars] seat heater switch bulbs

Ivan Demkovitch idemkovitch at hotmail.com
Wed Dec 14 10:48:27 EST 2005


Hm.. I had those LED's that Fred mentioned in his write-up and they wasn't 
bright enough for me.

Tried LED with resistor from RadioShack and it was even darker.

Where did you get those LED's ?

>From: Kevin Day <kday at ultrameta.org>
>To: Ivan Demkovitch <idemkovitch at hotmail.com>
>CC: s-car-list at audifans.com
>Subject: Re: [s-cars] seat heater switch bulbs
>Date: Wed, 14 Dec 2005 10:33:26 -0500
>
>On Wed, Dec 14, 2005 at 09:04:29AM -0600, Ivan Demkovitch wrote:
> > However I suggest to use bulb. I mail-ordered ultra-bright 12V LED's and
> > used foil "reflectors" and that was not enough light. Switches were 
>darker
> > then other lighted buttons.
>
>I had excellent results with LEDs, but any old red LED will not
>necessarily work well.
>
>I used LEDs of 3mm size, 3000mcd brightness, and 640nm peak wavelength.
>I forget the series resistor value, but it was, as I recall, on the
>order of 3k ohms.  (3000mcd is pretty bright.)
>
>-Kevin
>




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