Science can sometimes be crap. Trust me I am a chemist and I tell you that in some cases science simply sucks and as for plants it does most. A plant is like a baby and it simply asks for 4 things. Warmth, water, light an food. Give it too much or too few of that and it will start whining on you. As for light. I agree with Ross that light is light and full spectrum is simply nothing more then a sunlight emulator. We can theoretisize on such things until we die but the bottom line is that you simply should give it a shot and see what the plant tells you. If it burns, move the light away and so on. There are some books on google about orchids in which they performed some sick experiments with glowlamps and simple street lamps etc etc. I don't have any red light going on here and every plant spikes and does its thing.
I think that m_ms09 just did the right thing. Just do it and be amazed. Playing for god is not that hard
