I've taken every single LED bulb that has failed on me to pieces and it's always the same failure mode. The heatsink compound isn't applied properly to the back of the LED board. The LEDs immediately in the gaps smoke out.
Alas this isn't a problem. If a lightbulb goes, Amazon send me a new one out now free of charge and tell me to throw the old one in the trash.
This is one manufacturer, prevalent on Amazon, the Long Life Lamp Company. Long Life my ass.
They have been replaced by Philips and Ikea LED bulbs now which the oldest are 5 years old now and still going strong.
Edit: one thing to note is the really cheap ones run pretty hot. They have 105 oC rated capacitors in them. If you look at the derating curves at the running temperature they are clearly designed to last just past a year.
Alas this isn't a problem. If a lightbulb goes, Amazon send me a new one out now free of charge and tell me to throw the old one in the trash.
This is one manufacturer, prevalent on Amazon, the Long Life Lamp Company. Long Life my ass.
They have been replaced by Philips and Ikea LED bulbs now which the oldest are 5 years old now and still going strong.
Edit: one thing to note is the really cheap ones run pretty hot. They have 105 oC rated capacitors in them. If you look at the derating curves at the running temperature they are clearly designed to last just past a year.