Comment by Animats

They're repairing many LED lights. A more fundamental question - why are LED lamp units failing way ahead of schedule? Usually it's the power supply. Power supplies fail for known reasons. Usually, either overheating, bad capacitors, or bad solder joints. It's not rocket science. This ought to be fixable.

Whatever happened to those PhD theses I used to see from China on how to build LED lamp power supplies without electrolytic capacitors?