Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
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LED lights have been around for a while, it's just the powerful ones really took their merry time after 'white' was introduced.
"white" as in blue LED, which were the hot stuff at the time, but with a coating of phosphors to make red and green out of blue, ending up with white... LED.
there's still a lot of potential left in LEDs, but the main problem is the heat they produce and the optimum operating temperature efficiency on prolonged run times.