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tranch728 January 14th 05 11:46 PM

LEDs in Older Cars
 

I'd like to replace the tail light/brake light bulbs and front turn
signal bulbs in my 64 Chrysler with LEDs. Do they make LEDs that just plug
into the same sockets or do I have to make changes?
Any web site I can visit to see these LEDs?



Ad absurdum per aspera January 17th 05 02:13 AM

You can get 1replacements in various envelope sizes/LED counts at truck
stops and some auto-parts stores. They come in various colors, and
sometimes a colored LED appears clear when turned off, so examine the
label carefully to make sure you're buying the right thing.


Some of them carry fine print that says they aren't Department of
Transportation approved, for what that's worth (guess it depends on how
nitpicking a cop or a safety inspector feels). This may be different
for the replacement bulbs than for whole sealed units in standard truck
sizes and shapes -- *those* seem to be just taking over the world
lately, probably because of greater reliability. Maybe Daniel Stern
can comment more on these matters.

Prices seem to be coming down some but are still in the range of $6 a
bulb, and if memory serves a '64 Chrysler has a fair number of bulbs,
so this isn't going to be a cheap exercise. I'm thinking about buying
one for my retrofitted center high-mount stop lamp, so that I (or, more
to the point, people behind me) can get the benefit of its very fast
risetime without the three-figure price tag of re-lamping a whole '66
Thunderbird with them.

If memory serves, the difference in current draw is in your favor not
as great as you might intuitively expect.

--Joe


Dog January 30th 05 05:51 PM

Can you get them in 6 volts
"tranch728" > wrote in message
...
>
> I'd like to replace the tail light/brake light bulbs and front turn
> signal bulbs in my 64 Chrysler with LEDs. Do they make LEDs that just plug
> into the same sockets or do I have to make changes?
> Any web site I can visit to see these LEDs?
>
>




Frank Scully February 1st 05 02:00 PM

Pretty unlikely, as you are paying for a direct replacement package: i.e.
and LED w/ the proper resistor mounted in the correct socket. The good news
is that you only need ~ 1.2 volts to turn on an LED. So, it can be done.

Dog wrote:

> Can you get them in 6 volts
> "tranch728" > wrote in message
> ...
>>
>> I'd like to replace the tail light/brake light bulbs and front turn
>> signal bulbs in my 64 Chrysler with LEDs. Do they make LEDs that just
>> plug into the same sockets or do I have to make changes?
>> Any web site I can visit to see these LEDs?
>>
>>


--
FXS_at_beechhurst.com

Pepe February 2nd 05 08:23 PM


"Robin Banks" > skrev i meddelandet
...
> On Tue, 01 Feb 2005 08:00:02 -0500, Frank Scully
> > wrote:
>
>> The good news is that you only need ~ 1.2 volts to turn on an LED

>
> Depends on the LED. Some are 1.3v, some are 9v, some are 12v.
>
> All in all though, any 12v LED lamp replacement should work in any 12v
> auto,
> though I'd think the LED would look a little strange in them. (too
> "instant"
> on/off for my tastes.)
>
>
> ~~R.Banks


You can use 240 volts an d a diod 1N5001 as long as you don't exceed the
20-40 mA.
Use the right resistor for the LED and you can use any voltage. look at the
specs for the LED.
U = R · I

U / I = R 12 / 0,03A = 400 Ohm resistor for 6 volts = 200 Ohm resistor

P = U * I 12 * 0,03A = 0,36 Watt and for 6 volts = 0,18 Watt


Pepe




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