12v LED keeps burning out
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=77300
Printed Date: May 13, 2025 at 8:53 AM
Topic: 12v LED keeps burning out
Posted By: airride2
Subject: 12v LED keeps burning out
Date Posted: May 05, 2006 at 12:43 AM
I have a eagle talon with a water injection kit, basically i just want a LED to come on when the water solenoid is energized, simple enough, bought a set of 12v led's from walmart, white led with resistor, tapped it into the solenoid + side, grounded the other, worked great for a few times, then the led seamed to have burnt out. Any ideas why?
Replies:
Posted By: meltingplastic
Date Posted: May 05, 2006 at 10:50 AM
with your car running, its tech 14.4 volts.. might want to add another resistor in series before the led to drop the voltage
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Driving a Bagged, Caddied 02 s10
Posted By: ff-mike
Date Posted: May 08, 2006 at 9:17 AM
Try a reverse biased diode across the solenoid terminals.
The solenoid acts much like a relay, and the coil in it may be generating a higher voltage when de-energized and the magnetic field collapses. You should be able to find some tech info on this in the relay section on this
Posted By: crcustoms45
Date Posted: May 29, 2006 at 4:19 PM
or you could use the trigger wire for the solenoid to throw a relay. test the leds before you put it all together, your inline resistor could be too low resistance. did you ground the led to the ground on your solenoid? try a separate ground. let me know how it goes im curious. ------------- Chris
CRCustoms
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