DIY with Quantum Boards
- Thread starter robincnn
- Start date
714steadyeddie
Well-Known Member
Can't wait to throw a trellis on these girls
Qb288 slate 3
Qb288 slate 3
ganglyguy420
Well-Known Member
If I'm gonna use a potentiometer for dimming functions I need to buy the B series hlg driver's eh?
Stephenj37826
Well-Known Member
greg nr
Well-Known Member
Just to be clear, the A drivers have a built-in potentiometer. They are still dimmable, you just can't mount a switch externally.
Evil-Mobo
Well-Known Member
Correct
Danielson999
Well-Known Member
Just to be even more clear, the A drivers built-in potentiometer only dims to 50% whereas a B version will dim all the way down depending on how you build it.
ganjamystic
Well-Known Member
how does dimming work with the constant voltage (A) drivers?.. I have HLG-320H-54A drivers for my boards.. it looks like there are two dimming screws.. one says Io ADJ and one says Vo ADJ.. which one do I use for dimming? I'm planning on wiring the boards in parallel and running 2 per driver, probably not on full blast..
pop22
Well-Known Member
ganjamystic
Well-Known Member
word, thank you. I think I read on another thread somewhere that adjusting the voltage down to 53.5 or 53 V instead of 54 helps prevent thermal runaway with quantum boards wired in parallel... is this true? sorry, still learning all this stuff..
@robincnn @Stephenj37826
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ganjamystic
Well-Known Member
@CobKits
I think you said you prefer constant voltage drivers right? Do I need to do anything to prevent thermal runaway when wiring quantum boards in parallel? Should I adjust the voltage on my drivers down a bit? (Sorry, I know you sell COBs not QBs but I've noticed you seem to be knowledgeable with this stuff)
I think you said you prefer constant voltage drivers right? Do I need to do anything to prevent thermal runaway when wiring quantum boards in parallel? Should I adjust the voltage on my drivers down a bit? (Sorry, I know you sell COBs not QBs but I've noticed you seem to be knowledgeable with this stuff)
Is a 3x2 or 6 s. feet approximate good flower coverage for triple slate run at
around 216 watts at 1400ma...?
ganjamystic
Well-Known Member
I'm building some lights with slate 3 triple heatsinks right now, two boards in parallel and one HLG-320H-54A driver per heatsink.. I'm wiring them in parallel like in ledgardener's video here @ 20:25
. In the video, he shows the DC leads of the driver connecting to the same side of both boards, the right side where the horticulturelightinggroup.com label is printed. Does this matter? There are + and - connectors on both sides of each board. Can I connect the DC leads to the connectors on the right side of one board and the ones on the left side of the other board, as long as it's still +(red) to + and -(black) to - ? In other words, the boards are mounted on each end of the heatsink and right now they're in the same orientation, with the hlg label on the bottom right of each board. I want the red and black wires coming out of each board to point toward the middle of the heatsinks, so they can go through holes in the heatsink to the back side and connect to the driver, which is mounted in the middle. Do I need to flip one board 180 degrees so the wires connect to the right hand side of each board, or can I connect to either side of the board?
@robincnn @Stephenj37826
@robincnn @Stephenj37826
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Stephenj37826
Well-Known Member
Yes
That would be good
Stephenj37826
Well-Known Member
Yes
That would be good
thebluntman
Active Member
pop22
Well-Known Member
Great looking buds!
quantum board frost
Delehaze - Mango Haze X Lemon Skunk
View attachment 3984836 View attachment 3984835
thebluntman
Active Member
Curious what others think iam going to be doing something very similar. Trying to pick out the drivers.
lukio
Well-Known Member
thanks dude!