3000w LED | Cool hood | Extreme deleaf | grow jornal

Hello Rollitup, hope you dont mind if i tag along man. Your garden looks absolutely beautiful! Thank you for sharing.

BuddyColas said:

Your plants look happy. I like to see the leaves lifting up like that. And I like the way the buds are stacking up. Maybe just me, but is there a tiny bit a tip burn? What is your EC? Not sure on the conversion from the PPM you have showing.
I went back and looked several times at the 3 A Light site videos...especially # 3. If I count the days right, it looks like they defoliate about 30 days from planting a rooted clone in the pots. Then again about 20 days into flower. At least it looks like that to me. Tell me what you think. Doing the heavy math from your pictures, you took the fans off at 17 days into flower. They sure look good for doing it. What was your plan in veg and later in flower? Thanks.
*Also, I have the same gauge you do. I like it a lot. My problem is the opposite of yours. My RH hovers in the low 20s...quite dry. Haven't tried to remedy it.

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thank you!
yeah, there is a tiny bit of tip discoloration on some plants (not burn yet) good call, i'll watch closely.

(its even written on the meter ppm=ECx700) (it may be a lot for non organic nutrients)

let me brake down what "three a light" are doing:
they put a rooted clone in veg area, after ~3 weeks they top and Deleaf the plant (top probably used as fat juicy clone for next cycle)
after ~2 weeks they Deleaf the plant again and put it straight under 12/12
after ~20 days they Deleaf the plant one last time, give it support and play the wating game.

I'm sorry to tell, but I don't have a plan yet. I try to listen to the plants. (I know it sounds lame but that's how it is)

It's hard to believe that you never tried to add humidity to the room since 1960...
so your results matching the rest of the world with 20% humidity? that would be good news.
your plants look nice and sticky btw

ReddEyez said:

Hello Rollitup, hope you dont mind if i tag along man. Your garden looks absolutely beautiful! Thank you for sharing.

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thanks for joining the ride friend

rollitup.org said:

thank you!
yeah, there is a tiny bit of tip discoloration on some plants (not burn yet) good call, i'll watch closely.

(its even written on the meter ppm=ECx700) (it may be a lot for non organic nutrients)

let me brake down what "three a light" are doing:
they put a rooted clone in veg area, after ~3 weeks they top and Deleaf the plant (top probably used as fat juicy clone for next cycle)
after ~2 weeks they Deleaf the plant again and put it straight under 12/12
after ~20 days they Deleaf the plant one last time, give it support and play the wating game.

I'm sorry to tell, but I don't have a plan yet. I try to listen to the plants. (I know it sounds lame but that's how it is)

It's hard to believe that you never tried to add humidity to the room since 1960...
so your results matching the rest of the world with 20% humidity? that would be good news.
your plants look nice and sticky btw



thanks for joining the ride friend

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Thanks for the details. Might be a while for me to drop $500 on their book (though I am sure it’s worth it and they deserve it…so much intellectual property gets ripped off these days). So 3AL defoliates 3 times…that should be easy for me to remember.


And though I am a nerdy numbers guy (you can’t manage it if you don’t measure it), the girls ALWAYS get the last word and I try to do what THEY want!


RH at 20-30% seems to work. I only have a 2’x4’ box…so I am a small grower and it’s hard to add a humidifier. A little aside on that pic I shared. It is of Dutch Passion’s Skunk 11. I have never grown a slinkier weed than that. Every time I have to open the door…even briefly…I have to air out the whole house and hope no one drops by! And I have Ona’s everywhere! Just saying.


Great to be on the sidelines following your grow!

Herbal_Essence said:

12/12 Day 26

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They look awesome. Especially the ones closest to the door. Love to see those little white puff balls! So you gave them a trim on day 17 of flower. Using the 3AL approach, was that the third trim then?

And seeing your good results...I gave my up and coming plant its first trim...and blended all those fans. So I'll be watching your grow...and learning. I think I'm two trims back from you.

BuddyColas said:

They look awesome. Especially the ones closest to the door. Love to see those little white puff balls! So you gave them a trim on day 17 of flower. Using the 3AL approach, was that the third trim then?

And seeing your good results...I gave my up and coming plant its first trim...and blended all those fans. So I'll be watching your grow...and learning. I think I'm two trims back from you.

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thanks!
-yeah, i have put the ones that developed the fastest closest to eye sight so it will worm my heart ))
-I first watched the 3AL video only few weeks ago so it was to late to make it exactly as they did.
but i was partially deleafing and toping anyway so they got lots of light.

-just did the second trim on days 27-28 and put a cage around them. I'll update soon.

thanks for the kind words, glad you like it ^^

LSD - 12/12 - 26 days (9 days after deleaf)
absolutely amazing plant

12\12 day 26-27

Second delaef





Herbal Essence Commercial xd
day 28

Herbal_Essence said:

12\12 day 26-27

Second delaef

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Herbal Essence Commercial xd
day 28

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Great pics and video. You could be a promo for 3AL! Another 30 days or so and those branches will just be solid bud sticks!


There’s a lot of to-do about grams per watt, but that uses wall-watts. Very subjective depending on the panel or build, but grams and PAR watts per sq foot or PPFD is a much better to measure in my opinion. But the ultimate (in my opinion) is return on floor space, grams per sq. foot. A measure of your total skills. So if you said “a light” means a 4x4 or 16 sq. feet, then 3AL is saying you can get 3 ounces per square foot. Just my interpretation. Tell me what you think.


So I think with your 43 square feet (or so) and the way the girls are stacking the buds up, you are going to be killing it come harvest time. I do about 1.25 ounces a foot with 2 trims during flower and with room to improve, some here do 1.5 ounces a square foot or better. I would not be surprised if you crowd 2 ounces a foot. My opinion…just saying.


I’m sticking around to find out! Thanks for sharing.

BuddyColas said:

Great pics and video. You could be a promo for 3AL! Another 30 days or so and those branches will just be solid bud sticks!


There’s a lot of to-do about grams per watt, but that uses wall-watts. Very subjective depending on the panel or build, but grams and PAR watts per sq foot or PPFD is a much better to measure in my opinion. But the ultimate (in my opinion) is return on floor space, grams per sq. foot. A measure of your total skills. So if you said “a light” means a 4x4 or 16 sq. feet, then 3AL is saying you can get 3 ounces per square foot. Just my interpretation. Tell me what you think.


So I think with your 43 square feet (or so) and the way the girls are stacking the buds up, you are going to be killing it come harvest time. I do about 1.25 ounces a foot with 2 trims during flower and with room to improve, some here do 1.5 ounces a square foot or better. I would not be surprised if you crowd 2 ounces a foot. My opinion…just saying.
I’m sticking around to find out! Thanks for sharing.

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thanks once again Buddy!

"1.5 ounces a square foot " still depends on the light you are using...
so it should be grams per PPFD per sq.foot.
you are totally right about the calculations. but I don't have a PAR meter yet..

3AL means 3 pounds per 1k hps bulb. (have no idea about the space they were using)
all I took from 3AL was how confident they were about the trimming technique.

Wow I'm loving the setup, videos, and those fine ass girls lol. I can't wait to see the final product.

cool vids thanks

hello guys, I want to build extremely efficient and cool panels for the next grow using Cree cxb.
with passive+active cooling (possibly cool hood)
I want to try to take efficiency to the next level, so I don't mind spending more to get highest efficiency (75%+ is it worth it?)

by running each COB below 20w I'm hoping to get amazing light and heat distribution,
that will allow me to lower the lights to minimal distance for max. efficiency

after long research I'm almost done figuring out how to do it but still left with some questions, please help

-where can I purchase the highest bin and what is it ##?
-if my goal is in terms of yield only, should I use the 4000k or maybe higher K? if plants care more about photon density than spectrum..?
-what driver should I use for this purpose? (how to run the cobs below 20w?)

please correct me where I'm wrong and feel free to advice, this build is with an open mind to changes.
I'm hoping that together we can make it epic and test how it works.
I will be keeping a tight journal with all the values that you will ask for.

thank you in advance

Herbal_Essence said:

hello guys, I want to build extremely efficient and cool panels for the next grow using Cree cxb.
with passive+active cooling (possibly cool hood)
I want to try to take efficiency to the next level, so I don't mind spending more to get highest efficiency (75%+ is it worth it?)

by running each COB below 20w I'm hoping to get amazing light and heat distribution,
that will allow me to lower the lights to minimal distance for max. efficiency

after long research I'm almost done figuring out how to do it but still left with some questions, please help

-where can I purchase the highest bin and what is it ##?
-if my goal is in terms of yield only, should I use the 4000k or maybe higher K? if plants care more about photon density than spectrum..?
-what driver should I use for this purpose? (how to run the cobs below 20w?)

please correct me where I'm wrong and feel free to advice, this build is with an open mind to changes.
I'm hoping that together we can make it epic and test how it works.
I will be keeping a tight journal with all the values that you will ask for.

thank you in advance

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First, view all of Growmau5’s videos. His latest build is what I would do next. The only difference I would do is run bare cobs run close (because I have canopy-management OCD). He runs many different strains and goes for optics over a varying canopy. His latest build is proven and well thought out.


I run 4 cobs per bar averaging 1 cob per square foot. I also like bars over boxes…better spread. And 36” heat sink bars will be very versatile if your grow area changes.


I build backwards. What is my target DLI? Then what PPFD would give me that? Then how many PAR watts would give me that? All that is below the COB. (I chose 15 PAR watts per square foot)


Now the questions are above the COB…like how much money do I have? Sounds like you have some and are leaning towards more top quality emitters run very soft. I am a big fan of that. And using CXB3590. I chose to use 3500K for best compromise. Many pros choose that spectrum.


I build for passive, but use fans to keep things veeery cool! I see from your pics that your grow area is not up tight against reflective walls. I use bare cobs and the walls as my reflector and keep the cobs about 8” from the canopy. I am big on canopy management and am happy with that height. Without using the walls, you might consider reflectors. I would use reflectors over optics myself. *Supra grows mostly with bare cobs run close to the canopy…read everything he has to say.


Oh, and get a LUX meter at least. With the spectrums you will likely use, take your LUX reading in 1000s times 15 will give you a good ball-park PPFD reading. I am going to take it up a notch and will likely get the new Apogee PAR meter when it comes out. If you’re going to spend all that money on a top-quality build, then get a meter. There is nothing like adjusting the spacing of the cob bars and the height above the canopy for a nice even spread of photons! You can’t manage what you don’t measure.


If I was building now, I would order cobs from Cutter, heat sinks from Heatsink USA, and try for the HLG-240’s. They weren’t out when I built.


I like your style of growing. You are going to get a lot of advice with your last post. I’m going to stick around and watch the show.

I actively cooled the standard 50W per CXB3590 chip, it seemed like enough efficiency for my needs.

What's the advantage of going so much higher? The math showed huge swings in temperature and heat emitted between lamps running at well below 40% and COBs run at 55-60%. Not so much for those last ten points. What are you looking to gain?

ttystikk said:

What's the advantage of going so much higher?

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reducing your monthly bill if you live in an expensive area for power?

reducing the bill as much as possible is highest priority in my very specific situation.
basically, I want to build ~2kw COB made of COBs if that makes sense.

-lets say I wire 6 cxb3590 to one 240H there will be not enough voltage to power even single one?
am I understanding this correctly? if yes how can I overcome this?

I want to start ordering and experiment for myself,
could someone give me a hint if I should ask for top bins from Jerry or maybe other place has them? (for higher price?)

thanks

OK, check out the HLG-240H-C1050. It will put out a max current of 1.05A over a voltage range of 119-238VDC. So the CXB3590 Vf at 1.05A is about 34 volts (a high estimate as the factory chart does not go that low). So 6x34=204 volts. So you want to run 6 36volt CXB3590s on one driver at a max 1.05 amps, the HLG-240H-C1050 would do it. Please let me know how you see it...two sets of eyes are better than one. That would give you about 35 watts a cob max and you could dial it down to around the 700ma range for max efficiency with the "B" version! Shweeet!

BuddyColas said:

OK, check out the HLG-240H-C1050. It will put out a max current of 1.05A over a voltage range of 119-238VDC. So the CXB3590 Vf at 1.05A is about 34 volts (a high estimate as the factory chart does not go that low). So 6x34=204 volts. So you want to run 6 36volt CXB3590s on one driver at a max 1.05 amps, the HLG-240H-C1050 would do it. Please let me know how you see it...two sets of eyes are better than one. That would give you about 35 watts a cob max and you could dial it down to around the 700ma range for max efficiency with the "B" version! Shweeet!

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please message me if you would like to chat over the details in some instant messaging program. whatever you use, ill install it. thanks

Be glad to share what I have learned. I must say as a, how to say it, seasoned grower (an older guy), that I have not IMed. So you pick the program and I'll install it! Thanks. (I do have gmail)

BTW, that Skunk 11 came down about 12oz! A personal best per square foot. And about 1.38g a watt at the panels (that's with Vero29s not the top-of-the-line CXB3590s, so it could have been even better). And that with 15 PAR watts a square foot and 3500K cobs all. Many say that's a sweet spot temp wise, and comparing that with many HPS grows, I would have to agree. And by personal experience now!