Quote:
Originally Posted by davejohnwright
I started this thread thinking about the lumen decrease due to distance Anyone have a formula for.... . But the only way to figure out how many lumens are where is with a light meter it seems.
And I know about how decieving the wattage of light you use is compared to the power it uses, but thanks anyways.
peace |
Well light loss per range to source is not difficult to calculate.
It goes down exponentially and that means double the range cost your lumens to decrease to a 1/4. Exactly.
However that does not take into acount leaves that shade or other distortions and reflections etc. But from light source to top of the plants it is perfectly accurate and a basic physical fact of nature. Same thing with drag by the way
was a racedriver before. Double the speed = quadruple the drag.
Interesting thread by the way man. And ye I am very much into numbers, statistics and calculations myself.
Peace
Puffzter