Running two qb648 with 150watts

I have a two board slate heat sink with two qb648. I have one wired to a 150watt driver butt would it be worth it to run both of them with 150watt just for the coverage for veg imma use a 300+ watt driver.

I don’t think you can run both boards off one 150w driver you will need a 240 or 320 but I would go with a 320 and a dimmer so you can drive the boards at lower wattage to prolong the life of the boards.

I don't see why they couldn't be wired in parallel to split the load, which would increase diode efficiency as well as light spread.

Yes it would be worth running both boards

Treesomewanted77 said:

I don’t think you can run both boards off one 150w driver you will need a 240 or 320 but I would go with a 320 and a dimmer so you can drive the boards at lower wattage to prolong the life of the boards.

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Dude didn't even read op lol I said I am gonna get one lol

Yeah I guess I don’t understand your post them sorry.

Treesomewanted77 said:

Yeah I guess I don’t understand your post them sorry.

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It’s allll goood lol I own a qb648 an 150 driver I just wanted to know if it’s be worth running two qb648s for a lower wattage per board but same total output. I plan to order a 300+ watt driver that’s dimmable for flower to use 150+ watt per board.

How would I wire the second board on can I just connect the positive to positive an negative to negative?

Second connectors on first board to connectors on second board.

SaHt420 said:

Second connectors on first board to connectors on second board.

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I can take a pic of one of my boards so you can see but they are 4 board 480w so not sure it will be same or not.
Pretty sure there is some drawing out there that show how to wire them but let me see what I can find.

Treesomewanted77 said:

I can take a pic of one of my boards so you can see but they are 4 board 480w so not sure it will be same or not.
Pretty sure there is some drawing out there that show how to wire them but let me see what I can find.

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Yea I looked around found one for wiring 2+ qb288

SaHt420 said:

Yea I looked around found one for wiring 2+ qb288

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All of my boards are + to - not sure if that helps at all.

Personally I would just split the load coming off of the driver with a couple of wago connectors, then go to each individual board from there.

PJ Diaz said:

Personally I would just split the load coming off of the driver with a couple of wago connectors, then go to each individual board from there.

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Ok

be careful. rev polarity or something will fry the boards on the diablo series
I think you can do it, just be sure you wire things correctly! it wouldnt hurt to reach out to HLG's support-- I've had the BEST experience with them

Nizza said:

be careful. rev polarity or something will fry the boards on the diablo series
I think you can do it, just be sure you wire things correctly! it wouldnt hurt to reach out to HLG's support-- I've had the BEST experience with them

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Good call. @pop22 , @Stephenj37826 . Can you guys answer this one? I don't want to give the wrong advice.

PadawanWarrior said:

Good call. @pop22 , @Stephenj37826 . Can you guys answer this one? I don't want to give the wrong advice.

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Yes might as well get it out on the public here so others could reference this info. I wouldnt be surprised if there was info on this on the site somewhere

Imma email the company

I see no reason for this not to work, in fact the driver would better with 2 boards than running with just one on some drivers, like a HLG150H-54 is not recommended. Here's why, with just one boards the Vf (forward voltage ) for a single boards can rise to 56-57 volts, too much for the driver, where as with 2 boards, the Vf will be 54V. Best thing is to contact support for their expertise on what drivers you can use.

I've run a pair on a HLG185H-C1400b and they work fine. You get about 76-78 watts per board with this driver. You certainly get a lot of light and great efficincy at this power level! And think of it this way, each QB648 is equivalent to 2 1/4 QB 288!

SaHt420 said:

It’s allll goood lol I own a qb648 an 150 driver I just wanted to know if it’s be worth running two qb648s for a lower wattage per board but same total output. I plan to order a 300+ watt driver that’s dimmable for flower to use 150+ watt per board.

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pop22 said:

I see no reason for this not to work, in fact the driver would better with 2 boards than running with just one on some drivers, like a HLG150H-54 is not recommended. Here's why, with just one boards the Vf (forward voltage ) for a single boards can rise to 56-57 volts, too much for the driver, where as with 2 boards, the Vf will be 54V. Best thing is to contact support for their expertise on what drivers you can use.

I've run a pair on a HLG185H-C1400b and they work fine. You get about 76-78 watts per board with this driver. You certainly get a lot of light and great efficincy at this power level! And think of it this way, each QB648 is equivalent to 2 1/4 QB 288!

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Do you have the voltage specs for the 648's? I saw a chart awhile ago, but I can't find it anymore. I was thinking the HLG150-H-54 wouldn't work with 2 boards since the forward voltage wouldn't be high enough with 2. But I'm obviously confused again,

Maybe I'm thinking amps. I can't remember. I thought I had this stuff figured out awhile ago, but I keep forgetting shit,