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very fucking interesting! Everyone seems to be in love with the LED's recently, very interesting to hear a legitimate study with that in mind. Can you post a link to the study or at least the title/authors so we can read it?
There is no way, watt-for-watt, modern flourescents (even HO) are still more efficient than modern LEDs. Fifteen years ago they were probably dealing with 0.01w LEDs or something. NASA is in fact one of the biggest advocates of LEDs and growing with them in space now.
From personal experience the first 55w led panel I bought exceeded the 3x65w CFLs it replaced.