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Bueno Grows w/ DIY COB LEDs

fuggzy

Member
So I can't edit yet, but i wanted to add I'm just worried about powering the cobs at the moment.

Thanks again
 

Bueno Time

Active member
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Veteran
Sour Bubble BX3/4 F2 coming down tomorrow night after 56 days, OX F2s are on RO water only for another week, TPOGs and SK are on real light nutes ~.5ec for a week, then RO only for another week. All ladies should be down in the next two weeks. Cant wait cuz I need some smoke.
 

Dready_jake

Member
I prefer my Sativa's. But I kinda wish i could cut something down in 56 days. but it wouldn't work in my system with my tall ass 10week girls so a minimum of 70 days it is for me. When I upgrade my light I'm thinking of running multiple tables like the one I have so I can run more than one genetic. My sativa are selfish and don't get along with anyone but each other. Cliche bitxhes! lol

Happy harvests brotha! Make sure you post some updates in my "led grown" forum
 

Bueno Time

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hash time!

You know it, going to be some nice bubble hash with the trim from this coming harvest, going to do the Sour Bubble and OXs in one run and the Truepower OGs and Starkiller in a seperate run. Have some super nice indica bubble and some nice hybrid bubble.

At the beginning of this week I ran my little jar of trim from last harvest, TPOGs Starkiller OXs and SB mixed, it was a shitty small harvest and small amount of trim but it gave me a decent little yield of bubble that Ive been smoking all week. Really nice heavy buzz to it too, medicates me quite well. Its looking like Im going to finish the rest of it today though and then back to the few grams of old bud I have left from my least favorite phenos of a couple grows back, but Im glad I kept the bud around even though I didnt particularly enjoy the strain and didnt really even want to smoke it at the time (didnt and dont like the taste and high of it), but it will come in clutch to tide me over until some of these ladies dry and start curing.

Glad the SB girl is so fast so I can take her down tomorrow and not be harvesting early at all, she looked almost done enough to harvest at 6 weeks and pretty decently done at 7, so she is going to be nicely done at 8. Lots of purple coming out on her leaves now too and the buds are hella frosty.

I prefer my Sativa's. But I kinda wish i could cut something down in 56 days. but it wouldn't work in my system with my tall ass 10week girls so a minimum of 70 days it is for me. When I upgrade my light I'm thinking of running multiple tables like the one I have so I can run more than one genetic. My sativa are selfish and don't get along with anyone but each other. Cliche bitxhes! lol

Happy harvests brotha! Make sure you post some updates in my "led grown" forum

Ive come to find I am an indica and hybrid kind of guy myself and prefer the hybrids to have near a 50/50 or somewhat indica dominant effects.

I hear you there, multiple tables would be good and probably necessary for you for multi-strain, I had to elevate the indica doms quite a bit to maintain an even canopy with the bigger stretchers.

There will be plenty of pictures to come. :tiphat:
 

littlejacob

New member
Hello
Nice pics lots of beautiful girls...
Like i said, i want to "practice" on a dozen V10 5000k on small cpu cooler (55mm) but I'm not sure what hlg-60 i should buy!? Can you tell me please?
Have a great day★
 

Bueno Time

Active member
ICMag Donor
Veteran
Hello
Nice pics lots of beautiful girls...
Like i said, i want to "practice" on a dozen V10 5000k on small cpu cooler (55mm) but I'm not sure what hlg-60 i should buy!? Can you tell me please?
Have a great day★

Depends on how much wattage your trying to run (determined by drive current x vF) and how you want to wire them. 12 V10s would be ~306vF if they each ran at 25.5v which is near what mine were reading but at low current so could be anywhere within the manufacturers vF range x12 pieces. You will need to run series strings in parallel since 300+vF is really high to find in a driver.

An HLG-60 is only going to be 60w max total, if you went with the highest voltage version of the HLG-60 series it would be the HLG-60H-54 and has a max of 54vF at 1150mA so you could only run 6 sets in parallel of 2 V10 each in series and your drive current would be 1150mA/6 parallel strings so only 191mA each ~4.8w each maybe 5w each max. Ideally you would want to test vF of each V10 individually and record the numbers, then combine sets of 2 so that the vF of each pair is close as possible to being exactly equal for parallel driving to keep the current as even as possible across all the COBs.
 

Bueno Time

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Harvested the SB F2 last night @ day 56.5 12/12. Snapped a few pics of her quick, didnt turn out the best with the camera settings could have used more exposure, oh well. Buds were tiny but look of good quality, so Im sure yield will be quite low on her.

I kind of forgot to take pics of everyone in the tent for the weekly update and when I took the SB out the other ladies were flopping all over its a mess in the tent now and Im going to need to tie them up a bit with some string to the tent poles to keep them upright as I pull more ladies out to harvest. Ill get a few pics quick tonight after I tie the ladies up for some support. Thats one bad thing Ive noticed about having such a full tent and having them all grow in place (not removing from tent and putting back in just left where they are to grow), the plants support each other and the branches are relatively weak and not very woody from needing to support their own weight in buds as much, so they flop bad when you take out the lady in the spot next to them.

Anyway the pics...

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Bueno Time

Active member
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Veteran
Took a couple pics tonight when I was in the tent getting the Starkiller and TPOG #2 tied up some, the Starkiller still is trying to lean to the side and one lower branch snapped over at a 90 degree angle under its own weight so that branch might get harvested and smoked sooner than the rest of the plant haha but I just left it dangling there for now.

These are probably the last pics before the pre-harvest pics of the plants since the pics are all pretty much the same/similar looking with the plants in the same spots in the tent each time. They are ripening pretty well and actually might not need to go quite the full 70 days for the later finishers of the group, the TPOGs and SK.

Day 57 12/12

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Bueno Time

Active member
ICMag Donor
Veteran
Some closeups of the buds I cropped out of the above pics.

Truepower OG #4

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Starkiller #3

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OX F2 #1

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OX F2 #2

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Not the greatest pic but you can see how frosty she is here a little bit

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anasrzi

New member
Great thread Bueno you've got some fantastic growing skills on show not to mention your wry impressive electrical knowledge too. I hope these questions haven't been covered before but they probably have and I've overlooked them bu here goes anyway

Is there any other led drivers that I should be looking for online other than mean well ones? The reason I ask is I'm based in the UK and while I can find MW ones there's also cheaper unbranded ones on the market, I assume these will be very inefficient so is there any other options I can look for. Can source the other bits so that's cool.

I'm going to build a cob unit in the future to use in my 30cmx 60cm veg/clone cab how many cobs could it hold in there? Right now I'm running a large cfl and led floodlight I got for free and it works well enough but I like to try new things (much like you)

If the cobs work out well in veg I'm planning on converting from hps to cobs in the flower tent also which measure 90cm x 90cm x 180cm any ideas about the number of cobs it could hold too? I'm based In a garage so there's plenty of air flow and it helps keep the temps low.

Finally how high above the plants do you leave the cobs when operating fully I'm guessing around 9" to 12" is about right, lifting a lowering as needed.

Great thread mate it's some excellent reading, keep it going for us all
 

Bueno Time

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Great thread Bueno you've got some fantastic growing skills on show not to mention your wry impressive electrical knowledge too. I hope these questions haven't been covered before but they probably have and I've overlooked them bu here goes anyway

Is there any other led drivers that I should be looking for online other than mean well ones? The reason I ask is I'm based in the UK and while I can find MW ones there's also cheaper unbranded ones on the market, I assume these will be very inefficient so is there any other options I can look for. Can source the other bits so that's cool.

You can find cheap LED drivers for whatever your intended LEDs of choice require, you dont NEED MeanWell or other brand name on it. If you want to save some money and can find something that will work cheaper and regionally available go for it. You have to be careful with some cheap drivers not performing to specs but generally they will perform to the rated specs they provide. Its best to test them though with a multimeter to make sure your getting the rated current and voltage to be safe with a cheap or no name generic driver.

I'm going to build a cob unit in the future to use in my 30cmx 60cm veg/clone cab how many cobs could it hold in there? Right now I'm running a large cfl and led floodlight I got for free and it works well enough but I like to try new things (much like you)

30cmx60cm is roughly 2.8 sqft and wouldnt require much wattage for veg, quantity of emitters would depend on the size of the COBs you choose and the drive current/wattage of each, for example less CXA/CXB3070/3590/Vero 29 or more smaller Cree or Vero COBs like Vero 10s or 13s or similar. Id recommend more emitters running at less current each for limited headroom applications so you get a good spread with the fixture closer to the canopy vs if you have enough headroom you can run less more powerful emitters higher over the canopy to acheive the canopy coverage needed.

If the cobs work out well in veg I'm planning on converting from hps to cobs in the flower tent also which measure 90cm x 90cm x 180cm any ideas about the number of cobs it could hold too? I'm based In a garage so there's plenty of air flow and it helps keep the temps low.

90cmx90cm is roughly 3ft square and ~9 sq ft, to keep it simple (for us non-metric folks forced to use our own stupid system of measurements, haha). You can acheive quite good results in flower with ~30-35w of efficiently run quality COBs (Cree or Vero) but you could certainly run more if you wanted I would suppose with somewhat of diminishing returns after some point, not sure what that point is probably depends on the whole environment and setup as a system and would vary in different peoples grows. So ~300w would be a good aiming point and possibly up around 450w or so, close to the recommended 50w per sq ft with HID that people like. You could acheive a good light spread and ~450w of LED dissipation (actual power draw and use would be a little higher depending on driver efficiency and fans for cooling, etc) with 9 Cree CXA or CXB 3070s if you can find them or Vero 29s you could run them at 1400mA cheaply and have respectable efficiency, plenty of light output and intensity. At 1400mA 3070s run ~52w each so that would give you almost 470w total with 9 COBs and be plenty if not almost too much light for a 3x3 tent, if you can find a dimmable driver that is reasonable in your area I would recommend that so you can turn your current down to dim your light intensity if needed since 50w per sq ft is a bit overkill IMO with these new quality Cree and Vero COBs.

You could also run fixed current drivers that run around 1050mA for ~38w per COB ~350 total for 9 and would probably be enough light for your area. Hard to say there are so many options with DIY thats one of the best parts IMO you can build your lighting system tailored to your specific application. Id stick with the Cree 3070s or Vero 29s if you want to keep the build more simple, 3590s would even work well Im sure given a lower drive current or more height over the canopy to allow good light spread.

Finally how high above the plants do you leave the cobs when operating fully I'm guessing around 9" to 12" is about right, lifting a lowering as needed.

Probably around 12", maybe more or less depending on how the plants are liking the amount of light, if they are yellowing from the intensity back the lights off some and vice versa. I can keep my new Vero10 fixture a lot closer to the canopy without the plants suffering, due to the more even spread of intensity with so many small COBs, whereas with the CXA3070s I would get yellowing under the center of the COBs when kept too close from the extreme intensity in the middle area of the emitted 'cone' of light that you get from COBs (and other LEDs in general).
Also you might find you need to raise the COBs a little to get a better spread of light over the entire canopy of your plants but 12" is a good starting point and you can adjust from there easily to dial it in for your setup.

Great thread mate it's some excellent reading, keep it going for us all

Thanks for the kind words, glad you enjoy reading the thread.
 

anasrzi

New member
Thanks for all the info Bueno glad there some one here to help me out with this technical stuff, going to make one for sure and see how it fairs become I hopefully become a true convert.
 

littlejacob

New member
Bonjour mon ami
Hi Buenos! I am going to turn mad looking for a driver...I think I found one for 1 vero10: 250mA,4-7w,9-25V but 86% efficient but it is for test the Vf,what do you think of it?Now I'm looking for a 250mA 40W 210V(8x26V) for 8 Vero10,or a 500mA and make 2 parallel of 4(Do I understand, is it OK?) Minimum 90% efficient,and dimeable if possible.
Is it OK to wire them in parallel? Cause I read somewhere that is not recommended to do it.
From which breeder your seeds come from?And do you know a breeder in U.S who work with T.G.A genetics and made fem with their regular?(or I will have to wait 1 year before I will have enough space to reinstal my vegg box!)
Thanks for your time and good advice(if one day you come on french riviera let me know I will do the same for you!!!)
 

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