On Fri, 16 Jan 2015 23:28:54 -0500, wrote:

On Fri, 16 Jan 2015 18:17:48 -0800, Larry Jaques
wrote:
Thinking about this, I believe most of my lamps have used a different
brand of LED chip, Epistar. The above vendor claims it's the #1 Asian
brand for LEDs. I wonder if black market or substandard CREE chips
are the problem for you. Hot-running LED bulbs aren't in my future.

I think it is crappy assembly with little or no heat transfer to the
heatsink.

With that in mind, I recently sent away for some tubs of thermal
grease/heatsink compound. Are any of yours disassemblable, so you can
head off the problem prior to their death?

--
Progress is the product of human agency. Things get better because
we make them better. Things go wrong when we get too comfortable,
when we fail to take risks or seize opportunities.
-- Susan Rice