I have a grow log going using a Ufo+board+CFL check it out. not sure if the spectrum is right on my cfl but I kinda figured anything that covers the other spectrum's at all is probably not a bad thing. its a 68w cfl it says its comparable to a 300w its bright and the plants seemed to really like when i added it. Good luck with the led grow. if you decide to put up a log I'll be watching.