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).

  • CmdrShepard@lemmy.oneEnglish
    0·
    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.oneEnglish
        0·
        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.worldEnglish
        0·
        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.worldEnglish
          0·
          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.worldEnglish
              0·
              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