I hope there's not gonna be a test on all that information
it is some serious basics.nutrients,gro wing medium,atmosphere(o2 ,co2,temperature)and LIGHT.the 4 part harmony we all know,and love to hate and try and re-create in optimum conditions.lights are one piece of the puzzle that can be dealt with in formula.it's the logistic's of how you provide a safe power source and the proper intensity of your light source.
