I believe you confused the logic. The Law of Inverse Squares is much more complex than this but your explanation is a good generalization of the logic. At 12in off the ground 100% of the light intensity is available to your plants. Raising to 24in intensity is 75%, at 36in intensity is reduced to 50% and finally raised 48in the intensity is 25%. It's a good ball park measure for most folks, i.e. growing vegetables in a greenhouse over winter. But if you seriously want to dial in your production you will need far more complex calculations and I'm not aware of a calculator, etc. So it's really best to consider the mfr provided info with your grow light and go from there and following forums of like minded growers who may have the same equipment as you.
The inverse square law only applies to grow boxes if we change the hanging height and the box size propotionally at the same time. Keeping the reflective walls close prevents the light from spreading out to some extent.
Read the full science-based post: 420expertguide.com/resource/cannabis-grow-light-height/
I believe you confused the logic. The Law of Inverse Squares is much more complex than this but your explanation is a good generalization of the logic. At 12in off the ground 100% of the light intensity is available to your plants. Raising to 24in intensity is 75%, at 36in intensity is reduced to 50% and finally raised 48in the intensity is 25%. It's a good ball park measure for most folks, i.e. growing vegetables in a greenhouse over winter. But if you seriously want to dial in your production you will need far more complex calculations and I'm not aware of a calculator, etc. So it's really best to consider the mfr provided info with your grow light and go from there and following forums of like minded growers who may have the same equipment as you.
The inverse square law only applies to grow boxes if we change the hanging height and the box size propotionally at the same time. Keeping the reflective walls close prevents the light from spreading out to some extent.
it also only applies from a single point light source
All the amazon charts you mention show about 40-60% Light Par Lost 12 inches... Including your Amazon Spider Farm Chart.
That was simplified?
if you raise the light 12 inches i lose 25% its intensity drops to 750 not 250 correct?
?
Lol bro. Edit this shit and simplify it. There was nothing “easy” about this simply because of the poor delivery.
It's simple just do the monster math
You don't know what you're doing.
This was pretty useless.