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First measure the footage². To get it from square feet into square inches, you have to multiply by 144.
Footage² x 144 = in²
Ex: 1ft² (12" x 12") = 144in²
4ft² (47" x 48") = 576in²
Total Lumens ÷ Inches² = Lum/in²
Ex: 10,000L ÷ 576in² = 17.36Lum/in²
Why shoot so low? I don't think I've met anyone thinking about going through the effort and headache of indoor growing for 18g per plant. Just curious. Also, most folks worry about Lum/ft² rather than all the way down to the inch². Here is the formula regardless. Maths.
THEY'RE called KAAAAHBS Joe's dad's stuff
Footage² x 144 = in²
Ex: 1ft² (12" x 12") = 144in²
4ft² (47" x 48") = 576in²
Total Lumens ÷ Inches² = Lum/in²
Ex: 10,000L ÷ 576in² = 17.36Lum/in²
Why shoot so low? I don't think I've met anyone thinking about going through the effort and headache of indoor growing for 18g per plant. Just curious. Also, most folks worry about Lum/ft² rather than all the way down to the inch². Here is the formula regardless. Maths.
THEY'RE called KAAAAHBS Joe's dad's stuff