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What Happened to the 100000 Hour LED Bulbs?

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Re: What Happened to the 100000 Hour LED Bulbs?

#6
My father in law is a general contractor and religiously keeps all his LED bulb receipts. If anything goes out before the listed hours he returns it to HomeDepot. He hasn’t had any issue so far including some of the older bulbs described in the article.

Re: What Happened to the 100000 Hour LED Bulbs?

#7
> Plus, they’ll more than pay for themselves in electricity savings compared to the old, inefficient LED bulbs they replaced.

Sure, eventually, but without further context this obsession with light bulbs always sounds a little bit penny wise and pound foolish to me.

The relative cost of lighting on the monthly electricity bill is tiny so those savings are pretty small. Getting a more efficient fridge, washing machine, TV or (in our profession) computer typically has a much bigger effect on electricity expenses. And that is assuming your heating and cooking is done with gas.

Re: What Happened to the 100000 Hour LED Bulbs?

#9
post #2

What's the short answer?

The AC-DC or DC-DC converter will likely die long before LED's junction. Primary failure mode is capacitors "drifting" and closing the mosfet inside the buck converter too early.

This is why I tell people to buy simple "driverless" LED bulbs. A shitty constant current driver is worse than not having it at all.

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