Red tape

fragileassassin

Well-Known Member
Please be more specific when telling people this. The voltage can only be adjusted on the a version of the drivers (eg hlg-185h-48a.) On the hlg-185h-48b or hlg-185-48 the voltage cannot be adjusted and it will run each board, strip, or cob harder until it reaches max. Risking thermal runaway.

Remember that folks, the a version can have a set voltage that will run each item in parallel at that voltage from starting with one item to as many as you can hook up until you reach max current. The more you hook up in parallel after you reach max current the current and voltage will start lowering until you reach the minimum CV voltage range of the driver. Once you drop below the voltage range of CV. It kicks into CC mode and has a wider range of voltage, until you add so many that it doesn't have enough amps to power the board, or drops out of the CC voltage range.

Not trying to flame you higgs, just trying to let people know this info.
Good bit of info here, thanks for this!
Im fairly new to this myself, but I have some electrical background so Ive picked things up fairly quickly, but thats a much better explanation of the A versions than I was able to find myself.
 

NothinYet

Active Member
Good bit of info here, thanks for this!
Im fairly new to this myself, but I have some electrical background so Ive picked things up fairly quickly, but thats a much better explanation of the A versions than I was able to find myself.
I know. It took me a while to figure that out. The a versions also go above the rated max, so sometimes you have to be careful. I also think I just figured out the b versions can also go above max rating if you happen to get a potentiometer that is 110k ohms instead of 100kohms. Or add say a 10kohm resistor to one that is 100k or less. I might be wrong on this last point. I am awaiting response on this answer.
 

NothinYet

Active Member
Im gonna go with the 135w 288 kit and be done with it... If I want more, I'll just buy another one... Right now im gonna switch my lights around... I have a 300w Roleadro upgraded led to use in my tent with a scrog net... Im gonna use the qb in the cabinet on 2 plants in autopots... I need to hurry up and do it before things get out of hand... Feel me???View attachment 4165747
You could always add in 2 more strips, either samsung or bridgelux if you feel you need the power towards the end of flower.
 

NothinYet

Active Member
I can tell... Im just so interested in the grow that I focus on that exclusively... I go off what you guys have experienced and share and I make my way...
I have my outside garden to keep me occupied this summer until I get back from vacation on August 11th. Then the indoor tent will fire up.
 
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