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snoodog · 3054 days ago · link · · parent · post: The L.E.D. Quandary: Why There’s No Such Thing as “Built to Last"
Eventually maybe but my point is that at the moment the tech isnt quite there and LEDs are complex, finicky and difficult to drive correctly. The article says match in the coefficient of thermal expansion It took forever to get decent 3W leds out there into the market at a resonable price. Even now 100lm/watt LEDs are pricey.It is very challenging to grow high quality GaN on Si substrates because of the huge mis-
so im guessing that means were a decade out before they are affordable.