why do my new LED rear turn signals blink too fast? - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 11 (permalink) Old 11-18-2003, 04:58 PM Thread Starter
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why do my new LED rear turn signals blink too fast?

purchased all new bulbs for rear lights but decided agaist the red taillights becuse they didnt illuminate the entire reflector houseing enough....so I tried just the rear turn signals with amber LED's.....thought they worked perfectly when I pushed the emergency light button on the dashbourd....blinked as normal....but when I turned each signal on individually, they blinked twice as fast as if a bulb was out....what gives?...anyone know how to make them blink normally?...I really like the color they are...mor redish/amber then stock
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post #2 of 11 (permalink) Old 11-18-2003, 05:09 PM
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Reading Topic: why do my new LED rear turn signals blink too fast?

I have no clue why they do it, but the same thing happened with my Subaru and my dad's Harley.
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post #3 of 11 (permalink) Old 11-18-2003, 05:17 PM
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Reading Topic: why do my new LED rear turn signals blink too fast?

Different current drawn (resitance of filament). ie: Different Wattage.

The timer-like (relay? capacitor?) circuit that drives the blinkers is discharging too quickly with the different bulbs, and this changes the blink rate.

Crossbow's non-Amber looking bulbs (silvered? halogen-based?) blink slower than stock. Same logic. Long as you don't give anyone behind you (unless its the cops) epileptic fits from fast blinking, I wouldn't bother. Is there a law about this, even?

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post #4 of 11 (permalink) Old 11-21-2003, 08:40 AM
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Reading Topic: why do my new LED rear turn signals blink too fast?

if i remember correctly from my battle with these things on my last car, you can tap a resistor or something into the line to help slow it down.
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post #5 of 11 (permalink) Old 11-21-2003, 09:27 AM Thread Starter
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Reading Topic: why do my new LED rear turn signals blink too fast?

thanks Cube....I'll try that
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post #6 of 11 (permalink) Old 11-21-2003, 06:04 PM
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Replying to Topic 'why do my new LED rear turn signals blink too fast?'

mason, try reading thru this thread ffroma Civic forum. My neph has a Civic and did a search for LEDs and came across this page. They are using them as blinkers, like you, and had the same problem... someone provides somewhat of a solution... hope it helps... (it's along the same lines of what's been posted here already)

civic led
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post #7 of 11 (permalink) Old 11-21-2003, 06:48 PM
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Reading Topic: why do my new LED rear turn signals blink too fast?

FYI: There are these things called "load equalizers" that you can buy which will normalize the blink rate for leds. I believe that Liteswap sells them, and you can get them on ebay and sites like autolumination.com and superbrightleds.com as well. I don't know how these compare to a simple resistor solution (I didn't like how dim the LEDs looked as turn signals so I didn't pursue the issue).

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post #8 of 11 (permalink) Old 11-22-2003, 12:31 AM
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Reading Topic: why do my new LED rear turn signals blink too fast?

same logic when the load is halved by a blown bulb.
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post #9 of 11 (permalink) Old 11-22-2003, 12:33 PM
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Reading Topic: why do my new LED rear turn signals blink too fast?

Yup.. it has to do with resistance. The resistance of a LED is close to nothing... you need an Ohm Equalizer as CvilleSix says. One for each LED.. they plug in series witht he LED bulb.

Email me if you are interested. $15 each + shipping.


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post #10 of 11 (permalink) Old 11-25-2003, 04:38 PM
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Reading Topic: why do my new LED rear turn signals blink too fast?

0 ohm equalizer is just another way of saying 6 ohm resistor wired in parallel with the bulb. I belive you can use 3 ohm per side so you can get 2 resistors instead of 4.
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