nothin lyk that at all.. its the spectrum of light.. plants do much better with blue spectrum of light during vegetation.. one of the most concentrated areas of wavelength is about 415nm on the spectrum scale.. the 635 is in the red area, that wavelength is strong but it promotes flowering, so its for the flowering stage mostly.. u can use a little of it to promote ur vegetative growth.. when u have the red spectrum on for flowering, use a little blue spectrum, tthis will help the plant continue to grow and mature.. its the wavelength, you're thinking lumens...


lumens are measure of light seen by the human eye... we can't judge a plants growth by a human measuremant.. when plants use the light for photosynthessis, they're absorbing the blue and red wavelengths.. you should be in just a good shape as u'd be if u tried growing with cfls.. cus ur still providing the energy source..