DIY with Quantum Boards

[1KTrees]

Don't cut it in half please
If you do want to proceed. I will need more info about driver and number of boards to calculate voltage for you.
If you cut QB288 in half the voltage will remain around 50V-56V, depends on driver current.
QB288 is 18x16, when you cut in along the line i told you then it will become 2 pcs 18x8
18 remains constant and this is what determines the voltage.... mostly....... then there is drive current tooo

I thought it would be good to cut them because I wondered why you didn't make them square for better spread.

 

[1KTrees]

I d

Sorry all DIY Board stock is sold.
I apologize for those who missed this small batch.

Steve and I are working hard to ensure we will have plenty of boards and heatsinks soon.
There will be cool blue color heatsinks, new Slate 3 design , more slate 2 doubles and lots of cool stuff to make up for the delays
Small batches will be announced in this RIU thread.
for lager batches you will receive an email if you have entered you email ID here
https://horticulturelightinggroup.com/collections/diy/products/qb288-quantum-board
Thank You

I didn't order because I want to run about 114w per board and I need single sinks for that wattage.

 

[1KTrees]

for 2x4 with 3 boards.
HLG-240H-C1400A for 3 board in series
HLG-240H-54A for 3 board in parallel
HLG-320H-C2100A for 3 board in series

HLG-240H-54A is a good one for 2 boards in parallel at about 120w per board. About 80w per QB with 3 in parallel.

 

[Mr. T. Flexington]

I'm stoked on these two QB288s I ordered. I was looking to power them on a 320 dimmable driver, to get 300watts total. Which driver would I use for the 288s? Thank you.

 

[1KTrees]

I'm stoked on these two QB288s I ordered. I was looking to power them on a 320 dimmable driver, to get 300watts total. Which driver would I use for the 288s? Thank you.

MEAN WELL HLG-320H-C2800B in series should do it 151w each.
Or HLG-320H-54B in parallel for 160w each which pretty much maxes out the boards.

 

[DidjitalDude]

Got my hands one 4 QB 288's, but missed out on any slate 1's to go with. I remember hearing one guy early in the thread talking about running at 50 watts and not needing a heatsink, wondering if that would also be possible running them at 70 watts. If so, planning on getting an hlg320h - c1400b and running 4 in series with no heatsink. what do u guys think??

 

[Mr. T. Flexington]

Okay the 54B sounds like what I was originally going for. I want the option to power the boards at 160watts. Thank you again.

 

[Blake_n_Concentrates]

MEAN WELL HLG-320H-C2800B in series should do it 151w each.
Or HLG-320H-54B in parallel for 160w each which pretty much maxes out the boards.

I wonder if that's pushing them too hard? I was able to snag two and some heatsinks and I'm trying to figure out my driver choice too. Was gonna go witn 240 but would love to do Have 320 for 2 In series if robin doesn't advise against it.

 

[Crazaer]

If you have the slate 1 sink you need to be under about 100w per board. So about 1800mA to 2100mA max each.

The QB site says "Max 1050mA with QB304 Board with no airflow" for the Slate 1, which I will have. Can I run more mA on a QB288, or with a dialed down driver (like HLG-320H-54A)?

 

[1KTrees]

The QB site says "Max 1050mA with QB304 Board with no airflow" for the Slate 1, which I will have. Can I run more mA on a QB288, or with a dialed down driver (like HLG-320H-54A)?

1050mA on the QB304 is about 114w
2100mA on the QB288 is about the same
Volts x Amps = Watts

 

[1KTrees]

I wonder if that's pushing them too hard? I was able to snag two and some heatsinks and I'm trying to figure out my driver choice too. Was gonna go witn 240 but would love to do Have 320 for 2 In series if robin doesn't advise against it.

Quantum Boards are rated at 3000mA max.

If you have slate 1 sink then 2100mA is about max. according to what I read.

 

[brewbeer]

Got my hands one 4 QB 288's, but missed out on any slate 1's to go with. I remember hearing one guy early in the thread talking about running at 50 watts and not needing a heatsink, wondering if that would also be possible running them at 70 watts. If so, planning on getting an hlg320h - c1400b and running 4 in series with no heatsink. what do u guys think??

Order up some heat sinks when they become available and run the boards dimmed until they arrive.

 

[BobCajun]

Considering that the LEDs are mounted on what appears to be circuit board resin, how important could a heat sink be? Could probably just mount fans on em, like 1/4" above the boards.

Since Citizen COBs are about the same price per lumen, the only real benefit to the Samsung boards would be no heat sinks required, or very minimal.

 

[PetFlora]

Considering that the LEDs are mounted on what appears to be circuit board resin, how important could a heat sink be? Could probably just mount fans on em, like 1/4" above the boards.

Since Citizen COBs are about the same price per lumen, the only real benefit to the Samsung boards would be no heat sinks required, or very minimal.

More than price/watt, the QBs light is evenly spread over a wide area whereas CoBs still have more concentrated light nearest the center

 

[BuddyColas]

Considering that the LEDs are mounted on what appears to be circuit board resin, how important could a heat sink be? Could probably just mount fans on em, like 1/4" above the boards.

Since Citizen COBs are about the same price per lumen, the only real benefit to the Samsung boards would be no heat sinks required, or very minimal.

You could say the same thing for Bridgelux EB strips...no heat sink required at test amperage.

 

[Ryante55]

M

Considering that the LEDs are mounted on what appears to be circuit board resin, how important could a heat sink be? Could probably just mount fans on em, like 1/4" above the boards.

Since Citizen COBs are about the same price per lumen, the only real benefit to the Samsung boards would be no heat sinks required, or very minimal.

My board runs cool all day with fans and no heatsink at about 80w

 

[GardenGuy]

Hey guys! i'm designing my growtent with Quantum Boards to see if this setup suits me. I'll make the proper post when the restrictions let me go..

Very eager to finish reading this thread. Thanks to Robin and Stephen for the ppf numbers. but first of all, i must thank Growmau5 for introducing me to the diy led thing.

Keep on growing!

 

[sixstring2112]

Hey guys! i'm designing my growtent with Quantum Boards to see if this setup suits me. I'll make the proper post when the restrictions let me go..

Very eager to finish reading this thread. Thanks to Robin and Stephen for the ppf numbers. but first of all, i must thank Growmau5 for introducing me to the diy led thing.

Keep on growing!

you need to post,get your count up to 15 or 20 and then you can post pictures .gl on the build

 

[zypheruk]

One thing I have noticed running the double slate quantum kit in a 1.2X1.2 tent at a distance of say 18 inches from the canopy is that the heatsinks could do with being a little longer, to create a bigger space in the middle between panels, Then they would fill a 1.2X1.2 edge to edge if you get my drift.
Move lights up to about 3ft and coverage is fine.
Best I can translate atm, fucked outa my mind atm on painkillers.

 

[greg nr]

fai, growmau5 will have a live session on youtube starting at 2 pm eastern