DIY with Quantum Boards

[GardenGuy]

Let the games begin. In between the panels are filled in with .063 aluminum to seal so we have our coolhood design. Not shown in picture. This allows my smell and heat to be removed. The tomatoes smell indoors.

Dude this is the fixture i wanna make! thank you very very much!

 

[Crazaer]

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

they're live now, too

 

[Paka978]

320w in a 2x4(8sqft) seems fair to me. About 20 par watts per sqft. Plus it can be turned down. I probably would of used 3 boards though.

I installed a dimmer for that same reason...Also why I chose the 2800B and not the A driver...

 

[BobCajun]

M

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

Good to know, no need for heat sinks means less cost and fuss. So that's certainly an advantage over COBs. No way around heat sinks on them. Granted fans cost money too but probably less.

 

[1KTrees]

they're live now, too

Hard to watch, Growmau5 seems too blown and scatter brained today.

 

[1KTrees]

Good to know, no need for heat sinks means less cost and fuss. So that's certainly an advantage over COBs. No way around heat sinks on them. Granted fans cost money too but probably less.

Fans seem like more of a hassle. I like the passive heatsink route.

Advantages over COBs...
Not as hot
Higher lumens/watt
Nicer spread

 

[DidjitalDude]

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

thanks for the suggestion man, i will do just that.

 

[greg nr]

Hard to watch, Growmau5 seems too blown and scatter brained today.

He kind of blew off the QB questions I was interested in.

But he did say 300 watts wasn't enough for a 3x3. Which is not in synch with what the advice here has been.

 

[1KTrees]

He kind of blew off the QB questions I was interested in.

But he did say 300 watts wasn't enough for a 3x3. Which is not in synch with what the advice here has been.

I think he said it was a little low and I agree, at least from theory.

 

[Fastslappy]

I like HLG 320h-c2800 for 3 boards in parallel. That was my choice.

I'm doing one of these with salvage mars2 sinks & AL plate , got a double done just gotta mount the fans gonna use a 240 for the dbl

 

[ChefKimbo]

Good to know, no need for heat sinks means less cost and fuss. So that's certainly an advantage over COBs. No way around heat sinks on them. Granted fans cost money too but probably less.

My boards are barely warm to the touch at 50 watts each in my grow. Tuned to about 300 cfm the exhaust is overkill, which helps a lot. With airflow over the back of the panels you maybe could get away with 80 watts per board no heatsink without sacrificing longevity.

 

[ChefKimbo]

ds

I think he said it was a little low and I agree, at least from theory.

From what i'm seeing, 300 watts of QB is overkill in a 3x3 unless genetics is a factor. My plants were showing signs of too much light at 150 watts.

 

[1KTrees]

ds

From what i'm seeing, 300 watts of QB is overkill in a 3x3 unless genetics is a factor. My plants were showing signs of too much light at 150 watts.

Until we have enough real world application to look at we only have theory for the most part based on COB tech. We may find that 15 par watts per sqft will rival a gavita. Time will tell.

Thanks for the feedback.

 

[MMJ Dreaming 99]

Fans seem like more of a hassle. I like the passive heatsink route.

Advantages over COBs...
Not as hot
Higher lumens/watt
Nicer spread

Anyone get the impression that QB's can veg faster than other lights?

 

[zypheruk]

yes

 

[1KTrees]

Anyone get the impression that QB's can veg faster than other lights?

How tight are the nodes under the QB? I can get great size under an HPS but the nodes are tighter under MH. How does the QB compare.

 

[Stephenj37826]

He kind of blew off the QB questions I was interested in.

But he did say 300 watts wasn't enough for a 3x3. Which is not in synch with what the advice here has been.

Ask @captainmorgan what wattage he's using in a 3X3

 

[1KTrees]

Ask @captainmorgan what wattage he's using in a 3X3

https://www.rollitup.org/t/quantum-boards-grow.927065/

4 boards 245watts and he had some issues but still pulled over 1g/w.

 

[captainmorgan]

I started with a plant that turned out to be a male so I threw a under sized plant from a clone but didn't veg it much longer. So with that little plant I saw all I needed to, quantum boards from now on.

 

[Stephenj37826]

https://www.rollitup.org/t/quantum-boards-grow.927065/

4 boards 245watts and he had some issues but still pulled over 1g/w.

Exactly....... 320 watts on 4 QBs will match a 600 HPS which is perfect for a 3X3 area. So I wouldn't recommend any more than that honestly.