--===============3315698628482473427==
--089e013d1eba2937c0052cecd67f
Thanks all for the many responses and now that I know I will not blow the
LEDs should I wire things backwards I will find a replacement transformer
and proceed. With no way of knowing which of the two wires that run to the
LED string my chances are 50-50 I will get it right, but if not I will
simply reverse leads.
Best--Michael Oritt
On Mon, Feb 29, 2016 at 1:01 PM, Richard Ewald <richard.ewald@gmail.com>
wrote:
> 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@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@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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>>
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>>
>>
>>
>
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--089e013d1eba2937c0052cecd67f
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"color:#3333ff">Thank=
s all for the many responses and now that I know I will not blow the LEDs s=
hould I wire things backwards I will find a replacement transformer and pro=
ceed.=C2=A0 With no way of knowing which of the two wires that run to the L=
ED string my chances are 50-50 I will get it right, but if not I will simpl=
y reverse leads.</div><div class=3D"gmail_default" style=3D"color:#3333ff">=
<br></div><div class=3D"gmail_default" style=3D"color:#3333ff">Best--Michae=
l Oritt=C2=A0</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail=
_quote">On Mon, Feb 29, 2016 at 1:01 PM, Richard Ewald <span dir=3D"ltr">&l=
t;<a href=3D"mailto:richard.ewald@gmail.com"; target=3D"_blank">richard.ewal=
d@gmail.com</a>></span> wrote:<br><blockquote class=3D"gmail_quote" styl=
e=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div di=
r=3D"ltr">The part that bothers me is the 24V.=C2=A0 That is way, more volt=
age than an LED is supposed to run on.=C2=A0 There needs to be a dropping r=
esistor in the circuit or the LEDs will go up in smoke.<div>Rick</div></div=
><div class=3D"gmail_extra"><br><div class=3D"gmail_quote"><div><div class=
=3D"h5">On Mon, Feb 29, 2016 at 9:49 AM, Mike Garvey <span dir=3D"ltr"><=
<a href=3D"mailto:r3m1g4@verizon.net"; target=3D"_blank">r3m1g4@verizon.net<=
/a>></span> wrote:<br></div></div><blockquote class=3D"gmail_quote" styl=
e=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><d=
iv class=3D"h5"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><p =
class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Calib=
ri","sans-serif";color:#1f497d">Some LEDs have built-in stee=
ring diodes (as in a full wave bridge rectifier) and will run on either pol=
arity. <span>=C2=A0</span>In theory, this should allow them to run on AC su=
pplies as well.<u></u><u></u></span></p><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:"Calibri","sans-serif"=
;color:#1f497d">Mike<u></u><u></u></span></p><p class=3D"MsoNormal"><span s=
tyle=3D"font-size:11.0pt;font-family:"Calibri","sans-serif&q=
uot;;color:#1f497d"><u></u>=C2=A0<u></u></span></p><div style=3D"border:non=
e;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class=3D"Mso=
Normal"><b><span style=3D"font-size:10.0pt;font-family:"Tahoma",&=
quot;sans-serif"">From:</span></b><span style=3D"font-size:10.0pt;font=
-family:"Tahoma","sans-serif""> Healeys [mailto:<a href=
=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_blank">healeys-bounce=
s@autox.team.net</a>] <b>On Behalf Of </b>Michael Oritt<br><b>Sent:</b> Mon=
day, February 29, 2016 12:14 PM<br><b>To:</b> Austin Healey<br><b>Subject:<=
/b> [Healeys] LED polarity<u></u><u></u></span></p></div><span><p class=3D"=
MsoNormal"><u></u>=C2=A0<u></u></p><div><div><p class=3D"MsoNormal"><span s=
tyle=3D"color:#3333ff">This really is not a car-related question though I g=
uess we could make it into one:<u></u><u></u></span></p></div><div><p class=
=3D"MsoNormal"><span style=3D"color:#3333ff"><u></u>=C2=A0<u></u></span></p=
></div><div><p class=3D"MsoNormal"><span style=3D"color:#3333ff">I have som=
e 24VDC outdoor LED lighting and the wall-plug type transformer is defectiv=
e.=C2=A0 I cannot determine which of the two fine wires that run to the app=
liance (LED's) is positive.=C2=A0 I can find a replacement transformer =
online.=C2=A0<u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><sp=
an style=3D"color:#3333ff"><u></u>=C2=A0<u></u></span></p></div><div><p cla=
ss=3D"MsoNormal"><span style=3D"color:#3333ff">Here's the question: =C2=
=A0I understand that LEDs are polarity-sensitive and if I wire them up back=
wards will I destroy the LEDs or can I simply reverse the polarity?<u></u><=
u></u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"color:#33=
33ff"><u></u>=C2=A0<u></u></span></p></div><div><p class=3D"MsoNormal"><spa=
n style=3D"color:#3333ff">Best--Michael Oritt<u></u><u></u></span></p></div=
></div></span></div></div><br></div></div><span class=3D"">________________=
_______________________________<br>
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