 My LED's keep burning out., Why? |
 Nov 14, 2009 - 11:02 PM
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 Moderator  Joined Jun 29, '08 From Denver Currently Offline Reputation: 59 (100%)  |
I have been using LED's in my gauge cluster for a little over 2 years now. The first set of LED's I had were cheap-o blue LED's from Ebay. After a while, the LED behind my fuel and engine temp gauge went out. But it didn't go all the way out. It started flashing on and off, between all the way off, all the way on, and about halfway in between. After a while, it settled down to being about halfway on, but it would still flash. I chalked that up to cheap LED's, and moved on to white LED's from v-leds.com. I got them put in last Christmas. Last Spring, same thing happens, in the same spot. The bulb behind the fuel/temp gauge starts flashing like it's burning out, but never goes all the way out. I moved it around, and no matter where I put it, it still flashed. So I replaced the bulb with a spare that I had, and a few weeks ago, it started doing the same thing. Now, the other LED's behind my speedo and tach, in my turn signal indicators, and in my key ring are all fine. Nothing ever happens to them. It's always the one behind the fuel/temp gauge, and it's always the bulb going out. I can move it anywhere and it still flashes. I find it hard to believe that it's just coincidence that 3 different LED's have gone bad, when they were all in the same spot. So... What's up with my LED's? Or, I guess, what's up with my gauge cluster that is making them burn out like that? I have a video of what they are doing, if anybody needs to see it.
Thanks in advance for any insight you guys have. -------------------- "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others labored hard for." -Socrates. Even Socrates told us to use the search button!
 2006 Aston Martin V8 Vantage. 1998 Celica GT- BEAMS Swapped. 2022 4Runner TRD Off Road Prenium. 2021 GMC Sierra AT4. |
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Replies
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Dec 3, 2009 - 3:33 AM
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 Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
QUOTE (Mstoochn @ Dec 3, 2009 - 2:51 AM)  Led's dont last long in a car because of the simple fact that a car doesn't produce steady voltage.. in order to prolong the life of an LED u need the right resistance so it stays at a constant flow.... but a car will fuxuate between about 11.8 and 13.2 volts so unless you can create a superhuman resister ur stumped. Yep you are correct. Thats the reason for them blowing out. Even without the dimmer, the voltage can drops every time your fans kick on or when you press your brakes. The real solution to providing a steady voltage would be to use a capacitor. -------------------- 15PSI - 30MPG - Megasquirt Tuned
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Posts in this topic
richee3 My LED's keep burning out. Nov 14, 2009 - 11:02 PM
lagos I had the same problem when I tried led's in m... Nov 14, 2009 - 11:51 PM richee3 Nah, not really. I do every once in a while, when ... Nov 14, 2009 - 11:57 PM SwissFerdi Don't LEDs take badly to dimming?
Or maybe th... Nov 15, 2009 - 12:09 AM lagos Yeah, unlike normal bulbs, LED really need a const... Nov 15, 2009 - 1:03 AM richee3 Hahaha Ferdi, I love getting inside jokes! Too... Nov 15, 2009 - 11:06 AM 95st-celica i have had red led's in my guage cluster for a... Nov 15, 2009 - 11:19 AM Bitter i'll bet the one thats failing is overheating.... Nov 15, 2009 - 6:42 PM SinisterSinner I have about 8 months with my custom made LED bulb... Dec 1, 2009 - 2:45 AM samir0189 I have the same problem! On two different cars... Dec 1, 2009 - 9:11 AM richee3 ^^ Exactly. I bought crappy LED's the first ti... Dec 1, 2009 - 11:31 AM solidxsnake LEDs take fine to voltage changes, provided it... Dec 1, 2009 - 5:19 PM richee3 I'm running white LED's as bright as the d... Dec 1, 2009 - 5:26 PM lagos QUOTE (richee3 @ Dec 1, 2009 - 5:26 ... Dec 1, 2009 - 5:48 PM
richee3 QUOTE (lagos @ Dec 1, 2009 - 5:48 PM... Dec 1, 2009 - 10:15 PM solidxsnake I'm not sure how the dimmer circuit works, but... Dec 1, 2009 - 5:59 PM samir0189 I put regular "bulb-colored" bulbs in th... Dec 1, 2009 - 7:19 PM DGAF Hello guys. I just wanted to coment that some LED... Dec 1, 2009 - 7:41 PM lagos QUOTE If you do happen to get a new set of LEDs, t... Dec 1, 2009 - 9:07 PM solidxsnake I finished putting LEDs in my cluster (along with ... Dec 2, 2009 - 1:04 AM delusionz Yeah, My LEDs do that too, not just in the 1 place... Dec 2, 2009 - 2:40 AM lagos QUOTE (solidxsnake @ Dec 2, 2009 - 1... Dec 2, 2009 - 3:40 AM solidxsnake QUOTE (lagos @ Dec 2, 2009 - 3:40 AM... Dec 2, 2009 - 11:05 PM Mstoochn Led's dont last long in a car because of the s... Dec 3, 2009 - 2:51 AM richee3 ^^^ Sounds like you guys are talking about a mess ... Dec 3, 2009 - 10:38 AM SwissFerdi QUOTE (richee3 @ Dec 3, 2009 - 10:38... Dec 3, 2009 - 10:40 AM solidxsnake Pics of my dash and CC unit, as well as head unit.... Dec 4, 2009 - 2:04 AM lagos Nice job. Hope they will hold up in the long run. ... Dec 4, 2009 - 7:37 AM richee3 ^^ I just had my alternator rebuilt a year ago nex... Dec 5, 2009 - 12:41 AM lagos QUOTE (richee3 @ Dec 5, 2009 - 12:41... Dec 5, 2009 - 1:08 AM richee3 I definitely have that issue. I just discovered ye... Dec 5, 2009 - 2:32 AM richee3 QUOTE (richee3 @ Dec 5, 2009 - 2:32 ... Jan 13, 2010 - 10:11 PM Hanyo QUOTE (richee3 @ Jan 13, 2010 - 7:11... Jan 14, 2010 - 6:23 AM SinisterSinner QUOTE I finished putting LEDs in my cluster (along... Dec 6, 2009 - 12:06 AM solidxsnake QUOTE (SinisterSinner @ Dec 6, 2009 - 12... Dec 6, 2009 - 9:14 PM rave2n Here is your solution. Add this inline to your alt... Jan 14, 2010 - 10:04 AM solidxsnake My LEDs that I put in above have been burning out.... Jan 14, 2010 - 11:14 PM |
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