Looking for highest PPFD per 4x4 rig?

Hybridway said:

8-10 oz if we're betting guesses!

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We will see soon enough, but after seeing 4 grows that had a minimum of 1.3g/W... It's hard to say that the average above is incorrect

pop22 said:

NICE! And what are the Cacti you have growing?

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San Pedro Cacti. I also have a Kratom tree.

CobKits said:

depe

depends how hard you want to run them. i recommend 100-160W for the best economy and efficiency, so at 160, 2 of them per hlg320h@2800 mA is a popular combo

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So do I need two of these for 9 light engines or 1 meanwell for two light engines? I want the highest yield possible in a 4x4 area. I have 8 - 4x4 grids.
https://cobkits.com/product/meanwell-hlg-185h-48a-driver/

I appreciate your help but can you provide a list of what would be needed for 9 of those light engines. I know I need a metal frame.