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How do LED lightbulbs fail?

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May 25, 2017, 01:23 AM
jimmy123x
How do LED lightbulbs fail?
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Originally posted by Skins2881:
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Originally posted by jimmy123x:
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Originally posted by a1abdj:
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My guess is the electronics required to step down the 120V wall voltage to run the LEDs dies before the actual diodes do.



I believe that's the case. I have had 14 Crees fail since I installed them in 2014.


Unless you have a 1000 lightbulbs in your house, I'd seriously check your electric service.....voltage, neutrals, grounds.....etc.....

I changed all of the bulbs in my house to LED in Jan 2014.....I have a mixture of different brands.....I had one CREE fail and that's the only bulb that has failed in a light fixture that's on 16 hours a day.


Generally, I'd tend to agree with this.

There was a batch or two or three that there have been reported failures with and they date to that time period though. The nice thing is they have a 10 year warranty, so the problem is easily fixed the bad part is I've heard you need proof of purchase to make a claim.


My Home Depot just exchanges the CREEs for free without a reciept.
May 25, 2017, 09:41 AM
a1abdj
quote:
Unless you have a 1000 lightbulbs in your house, I'd seriously check your electric service.....voltage, neutrals, grounds.....etc.....



Only 992, so now you're got me worried! Big Grin

Actually just over 100, and having one of my electrician buddies verify everything was OK has been on my to do list.


quote:
There was a batch or two or three that there have been reported failures with and they date to that time period though.


Most of the failures were with that 2014 group. Earlier this year I swapped out my first four failures. The four brand new bulbs had all failed within the first 48 hours.

All of the replacements since have been fine (so far).


quote:
My Home Depot just exchanges the CREEs for free without a reciept.


This is how I have done it.


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