is 2.16 WPG enough to grow any plant. i was told that this is enough to even grow any high light plant long as i complete their needs such as co2, fertilizers etc. i was also told that WPG rule is myth and it doesn't apply to modern light technology such as T5HO, as they put very strong light for plants compare to any other type of lights. i was told that even 2.16 WPG is very strong light for any plant. i use 10,000k and plant bulb ( it got pink color to it). i have also heard that kelvin is just for a look and Spectrum is more important for plants.