Can of Bliss
Member
Greetings,
We have all heard the 50 watt per square foot rule, but when you conform your plants to the light rather than conforming your light to the plant things get more complex.
Just calculating the watts per square foot of screen on hexagonal v scrog grows posted here, it would seem 35-45 watts per foot works great.
BUT, that's not the full picture. Light doesn't come out of a bulb in an even cylinder. If you map out a specific light intensity from an HPS it looks almost apple shaped, a slightly stretched sphere with dimples as light doesn't come out of the electrode ended of the arc tube.
Anyway, I was hoping to put together a formula to calculate screen size for various lights. What light/screen combination have you used and how did it work? What logic did you use in design sizing?
We have all heard the 50 watt per square foot rule, but when you conform your plants to the light rather than conforming your light to the plant things get more complex.
Just calculating the watts per square foot of screen on hexagonal v scrog grows posted here, it would seem 35-45 watts per foot works great.
BUT, that's not the full picture. Light doesn't come out of a bulb in an even cylinder. If you map out a specific light intensity from an HPS it looks almost apple shaped, a slightly stretched sphere with dimples as light doesn't come out of the electrode ended of the arc tube.
Anyway, I was hoping to put together a formula to calculate screen size for various lights. What light/screen combination have you used and how did it work? What logic did you use in design sizing?