How come LED Light Bulbs only last for about 2-3 Years?

I’ve bought and replaced a lot of light bulbs, and I noticed that all of them said “up to 20,000 hours” which would be about 5 years given 12 hours of daily use (which we definitely don’t).

  • kitnaht@lemmy.world
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    2 months ago

    Get the ones with the strip LEDs that look like they’re trying to emulate a glowing tungsten filament. I can’t remember where I got the information; it was like the Technology Connections YouTube channel or something, but I remember them saying that since they put the LED lights in series on those bulbs, they have a much higher voltage requirement to drive them, and much less circuitry is needed. It’s the circuitry that burns out, and many of these filament-style LED lights literally only have a resistor as their main component.

    I’ve swapped to these kinds of LEDs like…5 years ago, and haven’t had one burn out yet. Probably have like…15 of them across the entire house.

    https://youtu.be/fsIFxyOLJXM?si=4wz0wa355Wd9gkUP&t=1389 – YEP – Found the advice. Starts at 23:09

    • shalafi@lemmy.world
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      2 months ago

      Almost every bulb in my house is the filament style and it’s always surprising when one dies. The 4 in my porch lights are on 24/7, in all weather of course, and have been for 4 years.

        • ChaoticNeutralCzech@feddit.org
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          2 months ago

          No, shorting a dead LED in a series chain of 10-20 will NOT burn your house down, it’s barely a difference to the driving circuit. Unless you’re buying knockoffs, there is a fuse in the base that will blow at like 0.5 A, no matter what you do to the circuitry.

          In many bulbs, you can adjust the value of a current-sensing resistor (usually one or two in parallel, about 2-30 Ω) to make your own “Dooby” lamp with lower power and way longer life. Of course, you need to know something about electronics.

        • beastlykings@sh.itjust.works
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          2 months ago

          Some people like tinkering. Big Clive has a series of videos on Dubai led bulbs. The government mandates that the bulbs be extra efficient and last extra long, so they are built with more filaments driven at a lower current. They run cooler and last longer. You can do a similar thing with American bulbs if you’re handy with a soldering iron.

          Honestly, with how poor many of these things are mass produced, opening them up yourself is practically a personal form of quality control. Whether you modify it or not I bet it’s less likely to die prematurely or burn your house down than those of a regular person who doesn’t open them 🤷‍♂️

  • AA5B@lemmy.world
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    2 months ago

    I still buy more halogen bulbs than LEDs - 4 fixtures in one room that I haven’t been able to convert go through more bulbs than the rest of the house of LED fixtures combined.

    So far I haven’t bought any bulbs this year and have used only halogens, but I used up my stock of both.

    My only real complaint about replacing LED bulbs is they change design more frequently than they need to be replaced - If I need to replace one bulb in a fixture, I can never find an exact match

  • ShunkW@lemmy.world
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    2 months ago

    I have had the same light bulbs since 2012. One of them broke when I dropped it while moving. Otherwise, no issues at all. Philips brand that I bought a box of 12 of when I moved into an apartment that year. Maybe I’m just lucky, but still no issues.

  • CmdrShepard@lemmy.one
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    2 months ago

    Generally because you’re buying cheaper ones that aren’t built as well. Heat destroys LEDs and the cheap bulbs generally use fewer individual LEDs running at higher power to produce a given output in lumens. More expensive bulbs use more LEDs at lower power to achieve the same light output so that they’re not constantly being overdriven and last much longer.

      • CmdrShepard@lemmy.one
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        2 months ago

        I just buy a cheap jumbo pack from Amazon. They’re like 15 bucks and last for years which is good enough for me.

      • acosmichippo@lemmy.world
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        2 months ago

        I have dozens of Philips Hue bulbs 6-10 years old and I honestly don’t think one of them has died. I’m sure they have lost some luminance over time, but they still get the job done no problem. I rarely run them at 100% anyway.

        But yeah I have also had some cheaper LED bulbs die within a few years.

        • quixotic120@lemmy.world
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          2 months ago

          Just fyi for anyone who would care about this: while hue bulbs are built well they are moving towards a model that requires you to put them on “the cloud”, even though they were sold for years and years without that requirement. The update will be mandatory whether you want it or not as part of Philips security being integrated into the app. It’s unclear what will happen if you don’t create an account and sign in at that point

          So if you’re like me and put all your iot shit on an isolated vlan without internet access they may not be the best option for you. Or if you just don’t want to support a company that wildly changes the tos years after purchasing their (expensive) product. I don’t want my home shit on the internet, I don’t trust Philips to put enough cash or effort into securing their servers, etc.

          The bulbs do work with zigbee though and that seems to be a viable alternative to using their hub/app although I haven’t tested it fully. This also means if you’re using them via HomeKit you’ll need some kind of bridge like home assistant

          • The Pantser@lemmy.world
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            2 months ago

            I added all my 10 year+ Hue bulbs to a zigbee stick about 4 years ago. I control them with Home assistant and Zigbee2mqtt. They were a bit flakey at first but after awhile now with updates they have been flawless. Best thing is you still get firmware updates through z2m. Highly recommend using Hue bulbs for their long term support and quality. I have had 1 bulb start flickering and Hue actually replaced it, free of charge.

            • quixotic120@lemmy.world
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              2 months ago

              That’s good to hear. I have a zigbee stick but haven’t found the time to repair them that way yet. I definitely agree they’re good products, it just left a real bad taste in my mouth when after years of using them I got a notification in the app that soon I’ll be required to put them online, which is nonsense

  • plz1@lemmy.world
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    2 months ago

    I’ve had sets of LED under-cabinet lights powered on 24/7 for about 14 years. I think one bulb went bad, out of 12.

  • SomeAmateur@sh.itjust.works
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    2 months ago

    The bulbs themselves are amazing. There are good ones in cars and computers, the flash of phones etc.

    The failure point is typically the electronic components that run or regulate it. And of course most companies want to sell more bulbs so they conveniently skimp on that stuff. So maybe the answer is a more expensive bulb that hopefully will last long enough to justify the extra cost?

  • hperrin@lemmy.world
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    2 months ago

    Smart bulbs like this:

    Have PCBs with small LEDs surface mounted to them. This means that the on-off cycle of the bulb causes heat deformation cycles of the PCB. This stresses the foils in the PCB and can eventually cause them to lose connection. That’s why they’ll often start flickering or lose the ability to be cool white, warm white, or specific colors (the different kinds of LEDs in them).

    But bulbs like this (often called smart edison bulbs):

    Use longer/larger LEDs that aren’t mounted to the PCBs, and will probably last much longer. They are better at not overheating their own electronics.

    If you want the first kind to last longer, don’t run them above ~60% brightness.

    • Maalus@lemmy.world
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      2 months ago

      Osram literally means “I’ll shit on it” in polish, they are the definition of a shit brand

        • Maalus@lemmy.world
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          2 months ago

          It’s a joke in Poland - what shines and actively threatens you? A lightbulb made by Osram

    • greyfox@lemmy.world
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      2 months ago

      I’ve got several full color Hue bulbs that are the most used lights in my house. I haven’t had a single failure in a decade.

      I was more than a little annoyed when they decided to stop supporting my original controller for them though.

    • Fuzzy_Red_Panda@lemm.ee
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      2 months ago

      +1 for philips.

      The problem is most of what the big box hardware stores in the US are selling are junk brands. And they won’t even offer basics like a philips 75-watt-equivalent soft-white led in their stores.

      The junk brand bulbs will fail in my kitchen light fixture after a year (they start flickering). The philips bulbs have never failed for me.

      A properly designed and produced led bulb should last like 20 years.

  • InternetCitizen2@lemmy.world
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    2 months ago

    Are you sure you have the same set up for voltage and resistance? If you don’t you’ll pass more current and burn out faster. Similar to a laptop marketing saying 14hrs, but that’s only if you leave it on low power, airplane mode, and don’t do anything useful. I’m curious to see if someone comments the real answer.

  • RaoulDook@lemmy.world
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    2 months ago

    My experience has been that they last for more years than I tend to notice which ones are which. I’m not mad at all about their longevity.

    I had 2 LED bulbs that I know for sure that I bought prior to 2015 that only recently failed. Those bulbs lasted at least 9-10 years. The rest of my bulbs I haven’t kept up with but those 2 older ones looked very distinctive with aluminum heatsink material for their bottom halves.