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Thread Number: 78176
/ Tag: Ranges, Stoves, Ovens
LED Bulb Failures |
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| Post# 1022031 1/22/2019 at 11:53 (1,920 days old) by cadman (Cedar Falls, IA) | ||
Rather than hijack the other thread, I figured I'd start a new one regarding LED bulb failures. Figured you guys might like to see pics.
This is my biggest gripe about LED lighting...in order to keep the cost down, pennies are pinched on the power supplies. Not enough suppression for radio interference, cheap capacitors that eventually fail, heat-generating components pushed to their limit. I pulled this board out of a failed Osram 9BR30 floodlight (9 watt). The plastic housing had yellowed around the outside of the board location (yikes), and you can clearly see a failed electrolytic cap that did it in. The FR4 material is also discolored from heat and the solder joints show heat-related stress (mottling and color haze). Judging by the date code, this was made the 37th week of 2015, so just over 3 years life. | ||
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Post# 1022033 , Reply# 1 1/22/2019 at 12:04 (1,920 days old) by turquoisedude  (.) |
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I'm extremely unlucky with LED bulbs down at the house in Ogden... About a year ago, I put in 4 as an expiriment. Only 1 of the 4 is still in service. Our power supply can be a bit hinky, especially in winter when it can wink on and off several times during a stormy night but I am surprised at how delicate these bulbs can be. Fortunately, I hoarded a good supply of 40 and 25 watt incandescents year ago... LOL
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Post# 1022046 , Reply# 3 1/22/2019 at 12:54 (1,920 days old) by Yogitunes (New Jersey) |
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LED's...especially ones like Xmas lights, can throw some other systems into havoc....its on the label, that it may cause interference.....
its been reported that ones made in China can be a poor choice to purchase.... even though it says 'Made in the USA', components inside may say otherwise... I was going to ask how long a life are others getting from their bulbs....as many boast upwards of 9 years service....2 to 3 years is more practical....I should start writing a date on mine, just to keep track.... one advantage over the CFL spiral ones, LED's can be used in any position.....learned that the hard way with the CFL's... since this vid was posted, LED's have come down in price.....many have energy Saver coupons attached, reducing them to about $1.50 a piece... | ||
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Post# 1022049 , Reply# 4 1/22/2019 at 13:22 (1,920 days old) by DADoES (TX, U.S. of A.) |
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Post# 1022051 , Reply# 5 1/22/2019 at 13:36 (1,920 days old) by henene4 (Heidenheim a.d. Brenz (Germany)) |
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That inteference surprises me though... The switchmodes in these run in the 1-digit MHz range, and not much more in them could cause any noticeable amount of noise, or am I missing something? | ||
| Post# 1022054 , Reply# 7 1/22/2019 at 14:12 (1,920 days old) by cadman (Cedar Falls, IA) | ||
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Regarding interference, it's enough to cause a problem with my AM radio reception.
Surprisingly, there was no FCC requirement prior to 2016 to even take radiated emission measurements on these things from the 30-1000MHz range, which most other electronic equipment must meet. CFLs were also terrible in this regard. | ||
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Post# 1022080 , Reply# 9 1/22/2019 at 17:37 (1,920 days old) by lakewebsterkid (Dayton, Ohio) |
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1 failure I have only had one LED fail. It was a GE branded bulb used outside. GE sent me a voucher for a new free bulb very quickly. | ||
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Post# 1022110 , Reply# 10 1/22/2019 at 22:15 (1,920 days old) by robbinsandmyers (Conn) |
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