Problem might have been, when the lights were off, condensation formed, or oxidation maybe broke the bond between the led base and heatsink. I remember someone talked about it in here or RIU before this forum was created.
It will eventually be a valuable product, if it can improve efficiency and extend the led's life.
For example, air cooled vs water cooled motorcycle engines.
As far as lights, it's "2 strokes" vs 4 strokes. CC for CC, 2 strokes are the "dominate species.".
I'll take a bunch of Vero 29's or 3590's over the strip light(cheapest by far to produce).
All for a little savings on your electric bill, maybe.
Environments change in the grow room, even with different led systems.
It's fascinating!