If you feel like you're not getting the full, expected lifespan of an LED bulb, or if you simply want to extend its life, you might want to check out helpful videos on YT. The point there is to alter the casing so that the bulb's heat dissipates much more effectively, prolonging its life.

There are other videos in which you can even repair your bulb if it's simply a case of one of the several LED emitters failing. Like old-school christmas lights, a single bulb going out in the series brings the whole thing down. A little solder, or even just pencil graphite(!) can be used to repair the thing IIRC.