Check out the history of light bulbs, an actual amazing conspiracy few people know about :)
It sounds cartoonishly evil, but "cartel" is just an economic term for a market where a small number of participants collude to control supply and pricing. Like OPEC.
https://www.newyorker.com/business/currency/the-l-e-d-quanda...
IMHO, we should be more aggressive about converting industries which gravitate towards cartels into regulated natural monopolies, like power/water supplies. Some kinds of markets really are more efficient with fewer participants, and we should find ways to encourage that efficiency without letting the lucky winners indefinitely dictate the terms of the market.
Definitely not even close to 10-15 years I was promised.
And this is why warranties are pointless. How am I supposed to get one of these bulbs from a four-pack replaced by the manufacturer two years after I bought it?
Was having my house painted a few years back, I have a triple set of spots near the very top of the roof (so about 30 feet in the air) - painter helpfully suggests - do you want me to replace those bulbs up there while I have my ladder up there? I agreed.
Big mistake, the bulbs their were still working 17 years after I moved in - now I have to replace them about every 18 months with the cheap crap the government only allows to be sold.
Not sure how replacing bulbs and throwing them in the landfill every 1-2 years is doing anything good for the environment.
It's simple physics :-)
This is anecdotal, but I had a bunch of bulbs of the same brand that started to fail, on the remaining bulbs I drilled a few air vent holes into them as they are used indoors only, and since then haven't had another failure.
I'm suspecting most LED bulbs fail from thermal stress on the driver circuitry.