[Healeys] LED polarity

[Richard Ewald]

The part that bothers me is the 24V.  That is way, more voltage than an LED
is supposed to run on.  There needs to be a dropping resistor in the
circuit or the LEDs will go up in smoke.
Rick

On Mon, Feb 29, 2016 at 9:49 AM, Mike Garvey <r3m1g4 at verizon.net> wrote:

> Some LEDs have built-in steering diodes (as in a full wave bridge
> rectifier) and will run on either polarity.  In theory, this should allow
> them to run on AC supplies as well.
>
> Mike
>
>
>
> *From:* Healeys [mailto:healeys-bounces at autox.team.net] *On Behalf Of *Michael
> Oritt
> *Sent:* Monday, February 29, 2016 12:14 PM
> *To:* Austin Healey
> *Subject:* [Healeys] LED polarity
>
>
>
> This really is not a car-related question though I guess we could make it
> into one:
>
>
>
> I have some 24VDC outdoor LED lighting and the wall-plug type transformer
> is defective.  I cannot determine which of the two fine wires that run to
> the appliance (LED's) is positive.  I can find a replacement transformer
> online.
>
>
>
> Here's the question:  I understand that LEDs are polarity-sensitive and if
> I wire them up backwards will I destroy the LEDs or can I simply reverse
> the polarity?
>
>
>
> Best--Michael Oritt
>
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