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MEAN WELL HLG-320H-C2800B in series should do it 151w each. Or HLG-320H-54B in parallel for 160w each which pretty much maxes out the boards.

HLG-240H-54A is a good one for 2 boards in parallel at about 120w per board. About 80w per QB with 3 in parallel.

I d I didn't order because I want to run about 114w per board and I need single sinks for that wattage.

I thought it would be good to cut them because I wondered why you didn't make them square for better spread.

HLG-320H-54B looks like an option for about 108w per board

Back to about 108v or it needs to be tested?

Does that make it a 27v board? That could be a game changer.

With 3 54v boards you may need 2 drivers. Doing them in pairs Ill use HLG-240H-C2100B And HLG-320H-C2800B is about max for 2 QB and heavier heat sink

If you have the slate 1 sink you need to be under about 100w per board. So about 1800mA to 2100mA max each.

Depends on how many watts you want for your space. 3 boards on a single drive is a little different with 54v version.

Well 320w in 16sqft would be revolutionary. That is a huge leap in tech if that is the case. 300% better than HPS and 200% than cxb COBs.

320w in a 2x4(8sqft) seems fair to me. About 20 par watts per sqft. Plus it can be turned down. I probably would of used 3 boards though.

Really would like to see single board heat sink for 2100mA and higher. Being 54v it does open up some driver options for series connection. I'll use the hlg240 2100 per 2 boards.

Maybe more.... I based it off of 17 to 20 par watts per sqft. If the wattage is a little higher from the driver or the eff. Is a little better....If the spread and spectrum is a little better than a COB, you could cover more space.

Y You running that on a 4x4?

That's about 100watts per board, 300w for the 3 QB and I believe about 52% eff. Good for about 8 to 9sqft. Imo

10 to 16 depending on layout

Docs say 1600mA max per board. Also I don't think that driver has enough forward voltage to run 3 in series. 114v max and the board is about 110v. I'm considering running 3 in parallel for 933mA per board about 100w each to cover a 2x4.

Does anyone know if 2 boards in series and 1 board in parallel can run on a HLG-320H-C1050B at 1050mA. I looked at the 3.5A version to run 3 in parallel but the forward voltage on that model was too low. Edit....I'm not sure forward voltage actually matters for parallel. I'll have to check.

I think the website said 1.6A was the max Edit...it does I just looked But 1.4A is plenty per board.