[anotha1]

They are a good deal and I had replaced at least six. My assumption was it's just a manufacturing defect since it's low cost and mass produced. And I'll buy the same ones to replace them.

Also note, these are spotlight LEDs that in the past were halogen, and not your standard sized lightbulbs, which are probably a few generations ahead in terms of manufacturing.

[Symbiote]

The small spotlight bulbs (GU10 fitting) are the most difficult to make reliable, since there's very little space for air circulation to cool the lamp.

As this video says, Philips don't even make these bulbs with GU10 fittings, probably because they can't achieve the necessary reliability.