thanks. i cant afford to buy premade units when i can build one with similar specs for a quarter of the cost. i love their lights but i just cant do it.
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3000W of COBS 8x8 with ethos collective and exotic genetix
- Thread starter Desert Hydro
- Start date
saitama
Active member
I hate to say it but I'm glad I'm not the only one experiencing the weird deficiency issue with the COBs. I should have subscribed to your thread because I missed all the action. I must confess that I stopped reading after the first set of plants hermied on you. Definitely pulling up a seat now!
i think most of my issues(hermies included) are most likely from too much intensity. the second i move my lights away further EVERYTHING get really green and pretty again. ive cut out all my additives since they were fucking with my PH balance. that could have screwed me up as well. jacks is inherently stable but when you start adding stuff to it unchecked it was causing problems. i can mix a bunch of jacks and leave it for weeks and it wont change a bit. 5.8 on the dot with my RO water but as soon as i start adding stuff its all over the place.
saitama
Active member
Yeah I'm not sure that this tape I'm using is working. I think I might need to come up with a better solution. I'm maxed out on height as it is.
saitama
Active member
Stinkhorn123
Active member
Thanks for documenting this Desert, good stuff bro!
AvidLerner
Member
sorry to hear bro
AvidLerner
Member
I like your setup it is clean and bright. I was using COB's for two years and I have decided to move on to Samsung LM5561C diodes. First I got three 90w chilledledgrowlight boards and put them in a 2x4 tent and got great results better than 200w of cobs in a 2x2 tent.
After that I jumped both feet into Samsung LM561C diodes. First I got some flexible 24v Constant Current LM561C strips from Mufuye Technology on Alibaba name Roget with 70 leds/meter and experimented with spectrum 3000k 900cri and 5000k 80cri. love it.
After that, I also designed a two channel LM561C 384 diode board with 50w/channel and 100w per board. I am replacing all my cree cob's with Samsung diodes either in strip or board format. Much less heat issues and no I did not copy a quantum board I designed my own GrowGreen board inspired by chilledled grow lights.
namaste
After that I jumped both feet into Samsung LM561C diodes. First I got some flexible 24v Constant Current LM561C strips from Mufuye Technology on Alibaba name Roget with 70 leds/meter and experimented with spectrum 3000k 900cri and 5000k 80cri. love it.
After that, I also designed a two channel LM561C 384 diode board with 50w/channel and 100w per board. I am replacing all my cree cob's with Samsung diodes either in strip or board format. Much less heat issues and no I did not copy a quantum board I designed my own GrowGreen board inspired by chilledled grow lights.
namaste
AvidLerner
Member
I just get the boards and build DIY style I use three 90w boards 270w to cover a 2x4 area here is a pic if it is ok. I figured the cost for one board was two cree cobs but better coverage. I had cree cobs mounted on flat heat sinks so I just reused them with these boards with small pc fans for active cooling and an inline 4" exhaust fan with carbon filter. Plus the electric cost goes down per sf cost.
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AvidLerner
Member
If you can afford it, I would look at chilledledgrowlights their kits, you can get the 175w board for $190 and mount on your own heat sink system. I posted a pic of three 90w boards, $90/ea I use in a 2x4 and that is all I am using, and the plants love it from corner to corner. 270w in 8SF that is only 33w/sf and they act like it is 50w/sf saves money on electric bill and heat removal. Oh he also makes commercial grow lights.
namaste
i like those boards. thought about trying a few of their boards to build a 600w light to cover a 4x4 with 5 of those. could put them in a head to head against the qunatums when i get mine. im also designing a vertical light that will cover the entire screen on one of my donuts which is subatantially more sq footage covered in the same floor footprint more or less
AvidLerner
Member
Your grows are so on point. I love your plants and the old skool HPS right on bro.
thanks. i am on a mission to go collect 8 more patients. i have a two more identical buildings i need to fill up and get going. each one will have 16 4x4's with one to two plants per 4x4.
i think im gonna drop 10k into some DIY quantum boards and go hard
i think im gonna drop 10k into some DIY quantum boards and go hard
AvidLerner
Member
I think that is the best choice. You already have grow skills you know what kind of light you want.
so im still ironing out some issues ive been having but i think im figuring them out. my runoff ph was way out of wack so i started flushing to get it back in line. then i saw someone say to check the runoff ec and when i did it was more than double my original ec lol. even with watering till runoff nightly it was still way too high. gonna start flushing with diluted nutrients and the end of every week and then keep the ph at 5.5 to help counteract the alkalinity of the bulk rockwool.
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