Chaud should be utilized in the flowering phase since it has a higher portion of far red wavelength.
During vegetative growth, red/blue/yellow should be employed as they are closest to the full spectrum.
Ou, you might use red/blue for early vegetative growth and red/blue/yellow for the rest of vegetative growth, particularly in the transition stage right before you switch your light from 18/6 à 12/12 for the flowering phase.
PLUS: Comment différents spectres affectent-ils la croissance des plantes?
