I read with great interest THG's diy SCROG grow and diy Cool Light and I got poking around on the interwebz looking for ballasts, etc, when I found this on eBay:
Quad Band 450 LED Grow Light Panel from HTG Supply.
Hmmm, I sez. The Lumen info listed was Red: 7.3 lux x 76 LEDs (554.8), Blue...