5 ms·

Isn't the 20k hours if they are just left on 24/7? Turning them on and off reduces their life span.

mrtksn 5y ago
I couldn't find the packaging but if I remember correctly, they also have on/off rating which was also at 10K-20K something. 50% failure rate in 2 years at domestic use is a very poor performance IMHO.
- masklinn 5y ago
  > 50% failure rate in 2 years at domestic use is a very poor performance IMHO. Electroboom recently reviewed / explained common failure cases: https://www.youtube.com/watch?v=lIK1jnYr0yw https://www.youtube.com/watch?v=lIK1jnYr0yw
xxs 5y ago
>Turning them on and off reduces their life span. That would be the case only if the driver is exceptionally bad, heat kills them pretty much (which would be continuous use). Any usable driver should limit the inrush current. @mrtksn, pretty much all LEDs you buy in the shop are heavily overdriven to get 1) high power, 2) shorten their life span, so you have to replace them, i.e. the planned obsolesce. It's exceptionally rare to see e27/e14 designs that would be half-decent. The "dubai ones" are an example of not-overdriven leds with okayish electronics but they still are subpar. --- (Edit) A simple solution for DYI, are LED strips - they are not super efficient as they have current limiting resistors (i.e. heat) but they can be dimmed easily (PWM) to last for long long time. Also they can be used in a lot of creative ways.
- mrtksn 5y ago
  We have min 2 years of warranty by law, they probably depend on people not going through the trouble requesting replacements.
  - xxs 5y ago
    Indeed - can you keep all the receipts? I have had LEDs replaced in warranty - but it's a massive hassle. They fail one by one, so less with than 2 quid each, it is mostly driving for a single lamp (and finding the correct receipt).
  - AdrianB1 5y ago
    Replacing led bulbs under warranty is sometimes too complex and costly versus buying new ones: you need the receipt, you need to go to the store, they will exchange it with one that is as bad as the original and it will burn again.
  - iforgotpassword 5y ago
    We don't; for things like light bulbs, rechargeable batteries, etc. there is 6 months only.
    - mrtksn 5y ago
      Why would that be? The warranty is against defects in the product(design or manufacturing) that prevents you from using it for the expected lifetime. Limiting it to way shorter period than the lifetime doesn't feel right.
      - iforgotpassword 5y ago
        I didn't investigate too much when I was hit by this, but apparently it's because these kinds of goods suffer from wear. Now obviously, it doesn't make much sense to allow a manufacturer to advertise 10k hours for a lightbulb while only offering 6 months of warranty, but here we are. For a laptop battery I might have put in more effort to dispute with the manufacturer, but for two ~5€ lightbulbs I just couldn't be arsed.
    - xxs 5y ago
      It's 2y in the EU and the UK.

I couldn't find the packaging but if I remember correctly, they also have on/off rating which was also at 10K-20K something. 50% failure rate in 2 years at domestic use is a very poor performance IMHO.

masklinn 5y ago
> 50% failure rate in 2 years at domestic use is a very poor performance IMHO. Electroboom recently reviewed / explained common failure cases: https://www.youtube.com/watch?v=lIK1jnYr0yw https://www.youtube.com/watch?v=lIK1jnYr0yw

xxs 5y ago

>Turning them on and off reduces their life span. That would be the case only if the driver is exceptionally bad, heat kills them pretty much (which would be continuous use). Any usable driver should limit the inrush current. @mrtksn, pretty much all LEDs you buy in the shop are heavily overdriven to get 1) high power, 2) shorten their life span, so you have to replace them, i.e. the planned obsolesce. It's exceptionally rare to see e27/e14 designs that would be half-decent. The "dubai ones" are an example of not-overdriven leds with okayish electronics but they still are subpar. --- (Edit) A simple solution for DYI, are LED strips - they are not super efficient as they have current limiting resistors (i.e. heat) but they can be dimmed easily (PWM) to last for long long time. Also they can be used in a lot of creative ways.

mrtksn 5y ago
We have min 2 years of warranty by law, they probably depend on people not going through the trouble requesting replacements.
- xxs 5y ago
  Indeed - can you keep all the receipts? I have had LEDs replaced in warranty - but it's a massive hassle. They fail one by one, so less with than 2 quid each, it is mostly driving for a single lamp (and finding the correct receipt).
- AdrianB1 5y ago
  Replacing led bulbs under warranty is sometimes too complex and costly versus buying new ones: you need the receipt, you need to go to the store, they will exchange it with one that is as bad as the original and it will burn again.
- iforgotpassword 5y ago
  We don't; for things like light bulbs, rechargeable batteries, etc. there is 6 months only.
  - mrtksn 5y ago
    Why would that be? The warranty is against defects in the product(design or manufacturing) that prevents you from using it for the expected lifetime. Limiting it to way shorter period than the lifetime doesn't feel right.
    - iforgotpassword 5y ago
      I didn't investigate too much when I was hit by this, but apparently it's because these kinds of goods suffer from wear. Now obviously, it doesn't make much sense to allow a manufacturer to advertise 10k hours for a lightbulb while only offering 6 months of warranty, but here we are. For a laptop battery I might have put in more effort to dispute with the manufacturer, but for two ~5€ lightbulbs I just couldn't be arsed.
  - xxs 5y ago
    It's 2y in the EU and the UK.