Thanks, I'll study the diagrams. What driver or drivers do you recommend for 2 12 strip lights? I think 300 watts is optimal for my 6sq ft space. I know I can run 2 185h 24a and achieve that number. Is it the most efficient setup?
300w for 6ft² would be 50w/sft, thats a lot, well above 1200μ Mol/s and you will probably see signs of light stress if you run it at full power. 200w should be more than enough for only 6sf².
For 300w I would take 2 HLG-150H-48A(~2x 39$) or one HLG-320H-48A(~86$) with series-parallel connections.
But to make it more "future-proof" you could also use 2 HLG-240H-48A, which would be enough for a 4x 4' area. Maybe you want to sell them later and that makes it a lot easier to sell them.
If we use 6p2s circuits to create a fv of ~46 volts the 3,2A (from 1 HLG-150)results in 2x 147,2w net/158wall watts, 533mA per Strip.
The same circuit but on HLG-240's/5,2A x ~47 volts(will increase a bit because of higher current) = 2x 244,4w net./263wall watts, 867mA per Strip.
With only one HLG-320/6,7A and a 12p2s circuit, ~45v it would be 301,5w net./325wall watts, 560mA per Strip.
The most efficient build would be this where the strips gets the lowest current, so the 150w solution in this case.
But, these drivers are dimmable via 2 internal potis(1 for vF, 1 for current) and this allows you to reduce output within a large area. The current poti is dimmable between 50 and maybe 105%(yes between 2 and 8% more is usual).
Voltage is adjustable between 43-53v. So if you need less light and the current poti is already on the lowest level, simply try to regulate the voltage down to to the lowest voltage. Lowest output of an HLG-150H-48A would be 43v and 1,6Amps= ~69w.