Lighting Qb driver selection?

[Delta9Heavy]

I have 2 qb288s. I would like to drive them at their max 130w/board for photoperiods and dim to 200w for autos. IxV=W right? Just curious why the hlg260 with the same boards and an hlg-240h-2100 driver is rated at 260w when the boards only pull a bit over 50v at 2.1a.=105w? Hlg website says the 185h-54 is the correct driver for 2 qb288 at 200w but by my calcs thats still at 2.1a? Can somone help me out with the theory?

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[Delta9Heavy]

Any help would be appreciated! Looking to purchase tomorrow and will go with the 2100 and get a kilowatt meter

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[Death The Cultivator]

I have 2 qb288s. I would like to drive them at their max 130w/board for photoperiods and dim to 200w for autos. IxV=W right? Just curious why the hlg260 with the same boards and an hlg-240h-2100 driver is rated at 260w when the boards only pull a bit over 50v at 2.1a.=105w? Hlg website says the 185h-54 is the correct driver for 2 qb288 at 200w but by my calcs thats still at 2.1a? Can somone help me out with the theory?

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Those boards are 49.86v X 2800ma current = 139.6watts.

You could run them on HLG 185h 54a/b x 2 or HLG 320h 54a/b

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[Burn victim]

Over 24 hours & 2 responses, that’s sucks ! You would of had better results on the Quantum Board Thread, but dumb asses got it locked arguing over nock - offs & patents that don’t exist? Harley Davidson almost went bankrupt because Indian motorcycle copied a HD clutch design & patented it ten years after HD invented it . Then they sued HD for all the bikes with that design for not paying patent fees lol! You would think modern lighting entrepreneurs would be smarter then Tesla & not get bent over by Edison ! Op , they got that information on the websites I believe.

 

[ReNN]

I x V = W is correct. (It's actually I x E = P but your on the right track.)

 

[Delta9Heavy]

Thanks for all the help but i still dont feel educated enough to make the purchase. My brain hurts i failed electronics 2.I hate buyers remorse. So if my boards are 49.xx V it would roughly take 2100mA to hit 100w each, my low power goal of 200w total between both boards. And id want 2800mA for 140ish W per board. Whats i guess is confusing to me is i swear in all the pics/vids on the web the hlg260 is rated at 260w with the same boards i have and it comes with the 240h-2100 driver. Thats a 240w 2.1A driver right? Hows it driving 2 qb288s at 130w each at a max current of 2.1a? What am i missing...just wanna understand

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[Death The Cultivator]

Thanks for all the help but i still dont feel educated enough to make the purchase. My brain hurts i failed electronics 2.I hate buyers remorse. So if my boards are 49.xx V it would roughly take 2100mA to hit 100w each, my low power goal of 200w total between both boards. And id want 2800mA for 140ish W per board. Whats i guess is confusing to me is i swear in all the pics/vids on the web the hlg260 is rated at 260w with the same boards i have and it comes with the 240h-2100 driver. Thats a 240w 2.1A driver right? Hows it driving 2 qb288s at 130w each at a max current of 2.1a? What am i missing...just wanna understand

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What exactly are you trying to accomplish? The drivers I mentioned are meant to be wired in parallel and could more than handle the 288's. The 288's are 49v at max but there's no 49v driver only a 42 or 54v so the HLG 320h 54a or b wired in parallel would work.

Or just run HLG-240H-C2100 with both boards in series or step up to the 320h if you want to run them at max or add in more boards later running at less watts.

Hlg's chart shows the min and max but the lights are more efficient if you don't run them at max so they suggest the 240h. Just a suggestion from them rather than something concrete.

I just built a bridgelux strip build rated at 43v and 1400ma but the suggested driver was a 480h despite my 12 strips being able to run at 720 watts. It's more efficient plus it hit the 30 watts per sqft. There is no 43v driver but there is a 42v.

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[Delta9Heavy]

Im wiring in series i should have mentioned unless you convince me otherwise but it seems a lot easier. 240h-c2100 it is. Thanks for dealing with this lol i still dont have a firm grasp.

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[ReNN]

So i have the hlg 260w kit with 288 boards bought direct from hlg. This is the driver that came with the kit. My boards are wired in series. I haven't even got above 175w for my grow and I just harvested. Plants loved it. I'm in a 2*4 space though.

 

[Death The Cultivator]

Im wiring in series i should have mentioned unless you convince me otherwise but it seems a lot easier. 240h-c2100 it is. Thanks for dealing with this lol i still dont have a firm grasp.

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Series is fine. I spent 2 months researching my light strip build before I pulled the trigger. I was going to buy quantum boards initially but I decided against it for bridgelux strips that I wired in parallel with 14g AWG solid core wire.

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