Killer of LED bulbs is heat. If you have some in fixtures that trap heat you should either replace the fixtures or get high quality bulbs for those fixtures. Look for bulbs rated for hot locations. And for outdoors make sure it's rated for wet areas.
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.
What lasted forever for me...CFLs. downside is they just don't seem to put out as much light. But I had some in my house 10+ years old. They lasted so long that when one finally burned out and I didn't have a replacement of the intensity...I was pissed to learn they don't even make them anymore. I'm not a fan of LEDs because some of the cheaper ones are like mini strobe lights and really big my eyes. I had to go through like $60 work of LEDs to find a set I actually liked
I've had the best experience with the Philips LED lights, and secondly, the GE lights. I've seen some here say IKEA as well are good. Others just are too cheaply made and fail quickly.
Yeah the drivers are shit on cheap products and heat can wear them out easily. I find that LED bulbs "burn out" by just being super dim rather than physically snapping like incandescent filaments. I have these 96 cent cheapass LED bulbs that I have no expectation of lasting long, and I have other 6 dollar dimmable bulbs that I hope I will last longer.
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
I'm no scientist, but I think it has something to do with actually turning the light off and on that's actually stressful to most light bulbs. I mean check out the Centennial Light (wiki link). I know it's an entirely different type of lightbulb, but they have run that light almost continuously since 1901, and it's largely believed that continuous operation has kept it going for so long (though it has dimmed quite significantly).
I suspect that 20,000 hours operation is likely expected under continuous illumination, not ever turning the light off.
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