Are LEDs the wave of the future..??

[Delphinus]

Just sorta in answer to the question about lux further back, the thing is lux is really just a measure of intensity but not a measure of PAR (photosynthetically active radiation). What would be really interesting to see would be the PAR outputs of that unit. e.g., a halogen bulb is really bright but wouldn't be very useful over a reef tank due to the spectrum. (You don't even see halogen's used as plant grow lights.) So I think the long-term viability of the unit will depend on what ppfd/PAR comes out of it. Anyhow that's what I think would be interesting to see.