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Taillight bulb => LED conversion questions

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Old Nov 16, 2004 | 11:36 AM
  #1  
triver's Avatar
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From: Miami, FL, USA
Default Taillight bulb => LED conversion questions

Hey all, im pretty sure i looked hard enough for a topic on how to do this, so hopefully thisll answer some questions/spark some ideas..

Ive just recently bought a '00 Civic EX for a daily driver and for something i can tune on my spare time. After some bodywork and a paint job, as well as getting Silverstar headlights, and a major interior scrub-down due to spilled and set coffee stains, i wanted to convert all the tailight bulbs to LED. So I buy four 8-LED 7443 (red) bulbs from and eBay auction, but the company sent me 1157s instead, saying that i did not ask for 7443s (the right bulb size) but for 1157s. They dont have the e-mail saying what i asked for, and neither do i (d'oh). so before selling off these 1157s on eBay or to a friend, i was wondering if the 7443 sockets on the taillight could be swapped for 1157 sockets.

Also, i recently installed two 12-LED 1157s (white) into the turnsignals on the back. After doing that, whenever i flip my turn-indicator, the front bulbs (non-led amber bulbs) and the rear LEDs blink twice as fast. The problem and results are similar to not having any bulbs in the back turnsignals at all. it might be because the LED turnsignal doesnt use as much power as a bulb, so i'd have to modify the LED to make it use as much power as a normal bulb; but im not very educated on electrical applications, so my theory is probably wrong.

So pretty much i was wondering if anybody has any experience, ideas, or suggestions on how to fix / do these ideas. Im pretty handy, so any modifications involving Dremmeling, soldering, etc. wont be a problem.

Thanks a lot, and all help is appreciated.


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Old Nov 16, 2004 | 03:44 PM
  #2  
HGZ's Avatar
HGZ
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Default Re: Taillight bulb => LED conversion questions (triver)

.. youre right about why its blinking twice as fast.

and trust me you will wish you never had bought LED 'bulbs' in the first place.


the light output is ridiculously insufficient, you can barely see them illuminate in red taillight housings, and they are just plain useless..

if you want to use LEDs for taillights, you should probably have someone retrofit some LED boards into your housings. im not sure how much work/money that will take, but it certainly will be smarter than using 1157/7443 LED bulbs..


good luck buddie
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Old Nov 16, 2004 | 07:26 PM
  #3  
ScareyH22A's Avatar
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Default Re: Taillight bulb => LED conversion questions (H.Gz)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H.Gz &raquo;</TD></TR><TR><TD CLASS="quote"> .. youre right about why its blinking twice as fast.
</TD></TR></TABLE>

You can use some resistors to make it blink at a normal rate. Can't tell you the resistor value tho.
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