Comment by kelnos

If you buy cheap off-brands on Amazon that's what happens. The cheap ones have poor thermal management around the LED drivers, and the heat dissipated will eventually burn the drivers out, much sooner than is reasonable.

Hooray shitty capitalist incentives.

The non-cheap LED bulbs I've bought have all lasted years and years. I do have some cheap ones that are starting to fail, after just a year or so. (Problem with those is that it was really hard to find the correct bulb size and connector type, so my options were limited.)