Well, what I got out of that is they found x amount of light does the same thing as pulses of light that add up to x amount. How is that more efficient? The whole idea of pulsing light is to trick eyes into thinking a light is on all the time when it's not. Plants don't have eyes, therefore they will not be tricked, and when the light is off the plant knows it's not getting light at that point. Less light = less yield.