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CREE light bulbs - high failure rate
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thm_w:

--- Quote from: floobydust on January 28, 2022, 07:24:12 pm ---Cree light bulbs are shit I think Gen3 didn't last past 2,000hrs despite the high premium price. To claim warranty I'd have to send them back to Cree at my expense. Home Depot stopped carrying them in Canada. Tried Philips and they have excellent CRI but short life, roasted capacitors burnt pcb. Ikea is best but warm white only.
I think too many patents on cooling prevents consumers from getting anything decent.

Indeed, can we dispel the myth about LED light bulbs lasting muh "20,000 hours" or "100,000 hours" bullshit? I don't know why EE's think they'll last near that- it's theory.

--- End quote ---

The original Philips bulbs would last that long. Then the costs came way down and the driver boards turned into hot garbage.



--- Quote ---As of April 29, 2013, the 200 Philips L Prize lamps completed 25,000 hours of continuous operation in the lumen maintenance test facility. None of the samples has failed to date, and average lumen
maintenance of the 200 lamps remains above 100% of initial light output. The projected time to 70% lumen maintenance would be well in excess of 150,000 hours (the six-times guideline in TM-21 limits forward projections to no more than six times the actual test period). Projected lumen maintenance should not be interpreted as projected lifetime, as it assumes all other components in the lamp continue to operate normally. Lamp failure could result from electronic or other component failure before or after LED output has reached 70%.
--- End quote ---
https://web.archive.org/web/20170926055948/https://www.lightingprize.org/pdfs/lprize_60w-lumen-maint-testing.pdf


https://hackaday.com/2019/02/05/what-happened-to-the-100000-hour-led-bulbs/
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