Round Custom DiY LED Challenge - Need Help!!

PJ Diaz said:
My bad, I missed that. Yeah prolly wouldn't give too much clearance.
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The pot is 7.5 inches high, say the light fixture on top is custom made and only 3 inches thick , that leaves me around 30 inches of vertical grow space. Most auto-flowering strains run up to 100cm which its roughly 40 inches so I would also need to find the right short enough phenotype to be able to grow her without doing any lst.
 
Moflow said:
Round led......?

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That's a good option but it would be more expensive than doing an DIY fixture which is the main point of thus experiment; low cost and maximize yield. That light takes up a good 4, 5 inches of vertical space; a custom light could be as little as 2.
 
Rocket Soul said:
Id maybe put some 660 and 730 reds on the top but little else. This should give it the right verticality and youll be able to stretch the plant using 730nm far red
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That's a great idea. The basic idea for this experiment was to utilize the space as affordably as possible but at the same time giving it the most light from the most angles I can to maximize yield. The goal is to get at least 2-3 ounces from that space; if i go with the strips only set up and it gives me 99 watts; theoretically I can get 3 ounces and not even have to be as efficient as 1 g/w. It would still be a high g/w ratio of around .75g/w, but it wouldn't be impossible.
 
So after many hours doing research I came to the conclusion that a round grow space is not very efficient and practical. I decided to go with a custom rectangular space of 50''h x 36''w x 20''d, using a 135w QB V2 LED from HLG. The new goal of this experiment is to create a furniture piece that can be central to the home and yet provide a fully functional mini indoor garden albeit for cannabis, roses, peppers, or whatever spice, flower or plants in general. I'll be posting another thread with this grow space to better gauge receptivity and market interest. Thanks for all the help guys.
 
ApexseasOG said:
So after many hours doing research I came to the conclusion that a round grow space is not very efficient and practical. I decided to go with a custom rectangular space of 50''h x 36''w x 20''d, using a 135w QB V2 LED from HLG. The new goal of this experiment is to create a furniture piece that can be central to the home and yet provide a fully functional mini indoor garden albeit for cannabis, roses, peppers, or whatever spice, flower or plants in general. I'll be posting another thread with this grow space to better gauge receptivity and market interest. Thanks for all the help guys.
Click to expand...
Id sincerely rec the qb120/qb132 and spread the light out a bit. One qb on max needs more hanging height.
 
Rocket Soul said:
Id sincerely rec the qb120/qb132 and spread the light out a bit. One qb on max needs more hanging height.
Click to expand...

Great insight. So you would use 2 x QB120 for 140w or just the one for 70w? With 2 QB120, one next to each other, would spread the light out more and not be as intense to keep the light closer to the plants correct?
 
ApexseasOG said:
Great insight. So you would use 2 x QB120 for 140w or just the one for 70w? With 2 QB120, one next to each other, would spread the light out more and not be as intense to keep the light closer to the plants correct?
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I think they come in 4s? As many as you can, you can even slam one on the side.
 
Rocket Soul said:
horticulturelightinggroup.com

QB132 V2 Quantum Boards

High Efficiency LED Light Engines. 132pcs Samsung LM301H LED per board
horticulturelightinggroup.com horticulturelightinggroup.com
Start with this kit it will end up cheaper
Click to expand...

Hadn't noticed that was for a 4 pack. With this driver (?) I would run them in series, 2 on top, 2 on the sides, or all 4 on top but placed vertically and they would fit super snug (9'' x 4 = 36'', space is 36'' wide), maybe I could add an extra inch or two to the space to make them fit better.


That would be up to 300w for around $240 instead of 135w for $200. Thank you sir.
 
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ApexseasOG said:
Not even that much. Just found the same driver for $65 at digikey; so that would be the almost the same $200 for 300w than for 135w. Crazy.
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Might want to check the meanwell XLG range out, the highest wattage is 240 but they are considerably cheaper, smaller and lighter than the HLG
range.
EDIT, you only need 150w for 5 square feet .

I was going to suggest a single COB ran soft with strips for side lights for your round space, but you've changed plans and I think its wise.
If the concept is stealth you can build a square/rectangular space a lot more stealthy to blend into a room.

Of course stealth kind of goes out the window when your extraction fan is running, which is all the time.
 
coreywebster said:
Might want to check the meanwell XLG range out, the highest wattage is 240 but they are considerably cheaper, smaller and lighter than the HLG range.

I was going to suggest a single COB ran soft with strips for side lights for your round space, but you've changed plans and I think its wise.
If the concept is stealth you can build a square/rectangular space a lot more stealthy to blend into a room.

Of course stealth kind of goes out the window when your extraction fan is running, which is all the time.
Click to expand...

I totally agree about the space and its ability to blend in. The concept is precisely that; a furniture piece that can be placed within the home and blend in with the rest of the furniture. You can't do that with a grow tent. I'll eventually make a thread about the prototype and gather input from the forum. I have a wood worker doing the piece. About the extraction fan I plan to run it at 60% to reduce noise levels; possibly using a 6 inch fan at 60%. It shouldn't make any noise at all at that level of power id think.
 
ApexseasOG said:
I totally agree about the space and its ability to blend in. The concept is precisely that; a furniture piece that can be placed within the home and blend in with the rest of the furniture. You can't do that with a grow tent. I'll eventually make a thread about the prototype and gather input from the forum. I have a wood worker doing the piece. About the extraction fan I plan to run it at 60% to reduce noise levels; possibly using a 6 inch fan at 60%. It shouldn't make any noise at all at that level of power id think.
Click to expand...

A 6" fan is typically 50db, trust me its not quiet. You can get fans like ac infinity 6" that run at 33db I think.
That is a big drop in volume.
60% would be overkill I would imagine 20% would be more than enough.
Depends on how warm the room its in is though.

I have a 6" fan that's only 23db on full power. But they are not common and do run less air than fans of comparable spigot size.

Your thinking on the right lines though, go big and low speed.

I think my 4" is around 110m3/h and only 21db keeps my 315cmh tent (1mx1mx2m) cool, both my fans are on voltage controllers and are incredibly quiet but they also take up around 18"x15x12" (box fan) , a pc fan is louder than my extractors.
 
coreywebster said:
A 6" fan is typically 50db, trust me its not quiet. You can get fans like ac infinity 6" that run at 33db I think.
That is a big drop in volume.
60% would be overkill I would imagine 20% would be more than enough.
Depends on how warm the room its in is though.

I have a 6" fan that's only 23db on full power. But they are not common and do run less air than fans of comparable spigot size.

Your thinking on the right lines though, go big and low speed.

I think my 4" is around 110m3/h and only 21db keeps my 315cmh tent (1mx1mx2m) cool, both my fans are on voltage controllers and are incredibly quiet but they also take up around 18"x15x12" (box fan) , a pc fan is louder than my extractors.
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That's exactly the one I was looking at and yes it runs at only 32dBA. Good too know it can be run at much less power and consume even less electricity and get the job done. Temps shouldn't be an issue since this piece would be inside the home so anywhere between 70-77 f should be the average. Lights wouldn't give off too much heat I would think; maybe add 3 f so 80 f max? A more complex model would include some sort of ambient control including temperature and humidity. Taking it one step at a time though and trying to make it as simple as possible.
 
ApexseasOG said:
That's exactly the one I was looking at and yes it runs at only 32dBA. Good too know it can be run at much less power and consume even less electricity and get the job done. Temps shouldn't be an issue since this piece would be inside the home so anywhere between 70-77 f should be the average. Lights wouldn't give off too much heat I would think; maybe add 3 f so 80 f max? A more complex model would include some sort of ambient control including temperature and humidity. Taking it one step at a time though and trying to make it as simple as possible.
Click to expand...

The AC infinity has a model that comes with speed controller and one that comes which automatically adjusts with a temp controller or (not and) humidity setting. I imagine that bumps up the cost. But worth it.
Yeah there wont be a lot of heat produced, but you can afford it to rise past 80f with LED anyway if it did.

Just be sure the fan you go with does have that range of reduction on airflow, I think they have 10 speeds so should be fine.
 
coreywebster said:
The AC infinity has a model that comes with speed controller and one that comes which automatically adjusts with a temp controller or (not and) humidity setting. I imagine that bumps up the cost. But worth it.
Yeah there wont be a lot of heat produced, but you can afford it to rise past 80f with LED anyway if it did.

Just be sure the fan you go with does have that range of reduction on airflow, I think they have 10 speeds so should be fine.
Click to expand...

I think even this one would be quiet enough at 28 ddBA (at max speed) and it includes temp and humidity controls. The package I had already included in the budget for the build was around $120 with the filter. This would add another $50 to the build with the filter; that's not too bad. Its rated at 200 CFM and I only have around 20 cubic feet; so basically it replaces all the air inside this space every 6 seconds at full speed.

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CLOUDLINE PRO T4, Quiet Inline Duct Fan System with Temperature Humidity VPD Controller, 4-Inch

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ApexseasOG said:
@Rocket Soul You think these lights and driver at 80%-90% will give off too much heat if I just use passive cooling?
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Keep the driver out of your grow space it would be a major cause of heat. If you keep to 150w total and use an ac infinity you should be good. I dont have experience with these boards exactly and even less of stealth. But the boards i use stay quite cool when run at similar power levels and surface area, though youd be running each diode a bit more hot so its hard to say.
 
Rocket Soul said:
Keep the driver out of your grow space it would be a major cause of heat. If you keep to 150w total and use an ac infinity you should be good. I dont have experience with these boards exactly and even less of stealth. But the boards i use stay quite cool when run at similar power levels and surface area, though youd be running each diode a bit more hot so its hard to say.
Click to expand...

That's a good idea to keep it outside somehow. 150w would be good for that space, maybe if I'm able to bring the temps down a bit and place the driver outside somewhere I can get away with 200w for flowering and it would still be at 60% capacity. I'll still run some trial runs before I even put anything in there to gauge the temps at different wattages and such. I'll also be adding a hygrometer that can also be access via app. I'll be building the app from scratch as well, but that's also further down the line. You would also be able to control wattage and/or light intensity form this app as well as timer, alarms and schedules for the lights.
 
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