LED problems
Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=12705
Printed Date: August 15, 2025 at 8:22 AM
Topic: LED problems
Posted By: QuagmireMan
Subject: LED problems
Date Posted: April 24, 2003 at 7:23 PM
i have a sound detector in my car that goes with the beat of the music, and i have 4 leds hooked in parelle, and yet most of the time the first LED in the series gets burnt out, causing the rest not to work, is maybe 3v too much for a LED?, i find that hard to believe. Any suggestions on what i should do would be great.
Thanks
Chris
Replies:
Posted By: auex
Date Posted: April 24, 2003 at 8:35 PM
If the LEDs where wired parrallel then the other LEDs would still work if one burns out, it sounds like they are wired in series. What type of LEDs are you using? If possible is there a way that you can switch to 12V LEDs and convert you power supply to around 11V?
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Posted By: QuagmireMan
Date Posted: April 25, 2003 at 10:35 AM
im sorry i did mean series, of a varible source which can spike at 14v
Posted By: MielGibson
Date Posted: April 25, 2003 at 11:01 AM
There's a resistor in series with the LEDs to limit the current. You can replace it with one with a bigger value or add another one to the string.
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