My LED's keep burning out., Why? |
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. |
Dec 3, 2009 - 2:51 AM |
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Enthusiast Joined Apr 27, '09 From West Coast Canada Currently Offline Reputation: 0 (0%) |
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.
In reference, when you use bulbs, they are usualy rated at 13 or 15 volts max capacity, the filliment within the bulb is able to handle unsteady current the same way the bulbs in your house do. (incase you didn't no most countries dont have 110volt power, its more like 95-115volts my suggestion to you is use sevral small LED's in parallel hope that helps |
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