I haven't used the Philips fixtures. I built my own so that I could utilize one of the principal adavantages of LEDs - that they are nearly a point source of light and thus can be tightly focused.
http://www.orchidboard.com/community...your-home.html
Yes, unfortunate that even Philips neglects to mention the LED wavelengths. There aren't that many LED colors available, all of the manufacturers have the same color set. So when the Philips literature says blue they mean about 460 nm (Cree has some at about 450 nm that they call Royal Blue), deep red will be about 660 nm and far red about 740 nm.
These LEDs are the standard color set:
LED Engin
Threaded Mode
