DIY with Quantum Boards

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NothinYet

Active Member
pingas said:
Hello everyone, as I am new to electronics, I could use some help.
I am planning on running my 288v2 QBs with active cooling. (a fan blowing onto the heat sink)
I read in the 288v2 thread that the 150w max is only for passive cooling and that active cooling increases the heatsink effeciency by a factor of 3.
Does this mean that I could run 2 QB 288v2s with an HLG-480-xxx and run them both at 240w with active cooling? If I do this, should I wire series or parallel?
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Stephenj37826 said:
The max current rating is the same as LM561C.
Honestly max current is 3.2A ... 200ma X 16 strings.
I believe @robincnn is being conservative because most meanwell drivers give a little more current than rated.
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According to this you can use a hlg-240h-c2100a wired in series (make sure to get the a version to go higher than rated Amps,) to get about 240w max. Or an hlg-240h-48 (a version, or b version with 100k ohm potentiometer for dimming. would give you a little over 240w. Both would run them about 75% of absolute max then

I would Definately make sure to monitor the heat with an ir sensor if you want to drive that hard, and have plenty of cooling. I would also opt for the a or b versions of these drivers, just in case it is running to hot you can dial it down.
 
Frank Nitty

Frank Nitty

Well-Known Member
NothinYet said:
According to this you can use a hlg-240h-c2100a wired in series (make sure to get the a version to go higher than rated Amps,) to get about 240w max. Or an hlg-240h-48 (a version, or b version with 100k ohm potentiometer for dimming. would give you a little over 240w. Both would run them about 75% of absolute max then

I would Definately make sure to monitor the heat with an ir sensor if you want to drive that hard, and have plenty of cooling. I would also opt for the a or b versions of these drivers, just in case it is running to hot you can dial it down.
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Im going to get another one of the 288s next week,but look at what one 288 had done for me!!! 2 skunk autos and one nl/big bud auto... These skunks are soooo frosty!!! 15298023053611011904767.jpg 15298024480031982277025.jpg 15298024908281104904344.jpg
 
fragileassassin

fragileassassin

Well-Known Member
fragileassassin said:
Hello everyone! First post here..
Im in the process of building my grow rooms and was looking for input on my plans for lighting..

I have 2 rooms that are each roughly 9'x5' but I have a foot of walking space around my reservoirs so its more like a 7'x3' space will a little room to stretch out.
My plan is to do 8x 3500k 304 boards spaced out evenly across a single frame above that I can lower if needed.
HLG-240H-C2100B powering every 2 panels.
Is there a more efficient way to do this or is there a way I can dim 4 drivers together? Id rather not have 4 dimmer switches for each room.

I had looked at the 480 drivers but they arent cheap..
If I get them direct can I use the 480H-C2100 on a 110 outlet if I wire panels in series? Does the driver do the step up?
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The cost on the 240H-C2100b were a little higher than I was thinking.
Looks like im going to use 4x 320H-C2800 drivers to push 4 boards wired in parallel each.
Theyll all be from the same batch and If I lose one it still only puts the other 3 boards at 1050.
 
N

NothinYet

Active Member
fragileassassin said:
The cost on the 240H-C2100b were a little higher than I was thinking.
Looks like im going to use 4x 320H-C2800 drivers to push 4 boards wired in parallel each.
Theyll all be from the same batch and If I lose one it still only puts the other 3 boards at 1050.
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so you are running 4 boards off 1 driver? I thought you only had 2 boards. Let me check on a 4 board setup.
 
fragileassassin

fragileassassin

Well-Known Member
NothinYet said:
so you are running 4 boards off 1 driver? I thought you only had 2 boards. Let me check on a 4 board setup.
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one of those will push 700ma to each board which should be enough from what ive seen in the post. If its not I can pull 2 boards and add a 240H-C2100 to run 3 + 3 + 2 sets all at 1050ma when I can afford to.
 
Stephenj37826

Stephenj37826

Well-Known Member
NothinYet said:
According to this you can use a hlg-240h-c2100a wired in series (make sure to get the a version to go higher than rated Amps,) to get about 240w max. Or an hlg-240h-48 (a version, or b version with 100k ohm potentiometer for dimming. would give you a little over 240w. Both would run them about 75% of absolute max then

I would Definately make sure to monitor the heat with an ir sensor if you want to drive that hard, and have plenty of cooling. I would also opt for the a or b versions of these drivers, just in case it is running to hot you can dial it down.
Click to expand...

With the Slate 2 heatsinks these boards do well at 150 watts each
 
N

NothinYet

Active Member
Frank Nitty said:
So I have a cabinet that is 37 1/2 L, 20 1/2 W, 53 H... Would 2 of the qb288s be too much for the space?
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If so
Frank Nitty said:
So I have a cabinet that is 37 1/2 L, 20 1/2 W, 53 H... Would 2 of the qb288s be too much for the space?
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In a space like that you could always run 1 qb288 and use some qb96's or Samsung F series or h series built around it, or for side lighting. Did you see Cletus that Big Green Thumb grew with his bird cage in the solo cup comp with leds.
 
S

Sleezygeezy

Well-Known Member
420Barista said:
its not that no one wants them, but they are new and alot have 288's and 304's already. plus not much has been reported on the new boards yet.
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Ya. I didn't mean for it to sound that harsh. I mean, I bought some 324s. Everything I've gotten so far is the bee's knee's. All of my vegative has been converted to 4000k qb's. I do not miss my 30lb. T5's. Goodbye & good riddance.
 
AtterStiga

AtterStiga

Well-Known Member
Is there anything like a wiki for these things? All the great info on this close-to-infinite thread lol. I'm having trouble collecting the various possibilities in my head, what with being really stoned and busy all the time. Would be great to have the info easily accessible when needed. I'm pretty spergy, if you haven't noticed, I want to know everything I possibly can before blowing lots of cash. I loved going from hps to cobs, now I want to join the qb community lol.
 
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