Originally Posted by jeanna
I am assuming the red and blue with 5 minutes of white to stimulate flowering is much more recent research.
Does your friend think leds are superior to ott lights?
The 5 minute white, hours of red/blue and 5 minutes of white is for both
growth and flowering. It is the reduction of light hours that stimulate the
flowering - tricking them into thinking the daylight is getting shorter.
I just skyped him to see if he can post here.
One thing that needs to be researched is - are there specific frequencies of
pulsing the red/blue that have benefits.