Welcome to the Growery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!
"PAR means Photosynthetically Active Radiation and that defines the main portion of light used by plants (350-750nm)* PAR watts is the mesuare of the actual amount of specific photons a plant needs to grow, *There is no certain of the exact PAR zone, most scientists make their calculations based on 350 to 750 nanometers."
Each bulb have diferent PAR rating and it depends also on your bulb Kelvin temp.
So, i think twice the lights = twice the par is false, unless the bulbs are the same.
Threaded
Previous
Index
Next
Some of these posts are very old and might contain outdated information. You may wish to 
Edit 
Reply 
