Airwalker16
Well-Known Member
We use the monos to boost & supplement those colors that may be lacking WITHIN a specific CCT where reds and blue peak at different areas and intensities. Get it?
Cutter Electronics: Complete DIY COB kits
- Thread starter Growmau5
- Start date
MadNyeTheHydroGuy
Active Member
So basically a 7000k 3070 cob is going to be warm (red) white light but still lacking the intensity or completely not produce light that an additional red led could supplement. So essentially any cct cob is the same in that you would still need to suplement with additional leds that produce specific forms of light.
But does this mean that certain cct cob are useful and specific for different stages of growth?
Airwalker16
Well-Known Member
No. First of, 7000k doesn't exist. 5000,5700,&6500. These are all towards THE BLUE side of the spectrum. The 2700,3000,&3500 are more red. Which in turn equals different stages yes. Higher CCT for veg, lower for flower.
MadNyeTheHydroGuy
Active Member
Oh thought i saw one on cutters site.
I get confused because i think higher number higher temp warmer color. So since cobs dont produce enough of certain colours regardless, would it be better to go with cobs that fall in the middle of the spectrum and sup with monos?
Airwalker16
Well-Known Member
Many of us have done full runs under just 3000/3500 with GREAT results. For the entire run. Supplementation isn't necessary, just helpful.Oh thought i saw one on cutters site.
MadNyeTheHydroGuy
Active Member
If i mixed cobs in equal ratio between the different ends of the cct would that have an adverse affect on my plant, or are the colors just not at a high enough level to really make a difference?
Airwalker16
Well-Known Member
Bro, buy 3500s and you'll be happy. ; )
MadNyeTheHydroGuy
Active Member
Lol i know, if people can grow under cfl bulbs im sure im going to be ok with my results, but these bastards arent cheap and if im gonna go for it i wanna go for the gold.
What are the most common mono sups and their purpose?
Airwalker16
Well-Known Member
Not many people supplement with monos bro. Besides maybe far red for flower trigger. Just use cxb3590/3070's in 3500k or mix 3000&4000 & all will be well.
MadNyeTheHydroGuy
Active Member
Alright ill just stick with that then lol. I have a million other questions but i know Im pushing the limits of stranger generosity here.
Airwalker16
Well-Known Member
Ask away.
Airwalker16
Well-Known Member
I already explained monos purposes. They boost certain colors in the spectrum. ie: 435nm blue, 630-660nm red. UV a,b, and c are 190-370;or something like that. We'd like to use uvb supplementation but there are very few ways to reach the UVB we need besides agromax PURE UVB t5 fluorescent bulbs. Leds aren't quite there yet besides ones costing $100's.
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MadNyeTheHydroGuy
Active Member
Which colors do the plant use for what purpose? I know the red (IR?) triggers flowering, and someone else said something about trichome production? Is there any literature i can read up on?
Airwalker16
Well-Known Member
Tons of threads on it on here. But I told you
..once again..
Blue is for veg higher kelvin CCT(5500k)/lower nm(435nm)
Red is for flower lower kelvin CCT(2700k)/higher nm(630nm)
Color temps are determined by how much of each NM is in its spectrum to give you the Kelvin.
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Airwalker16
Well-Known Member
You see above? Even though the 5500k has a big peak by the 3000k's red, it's not quite IN the red NM range. Notice how 5500/6500 has a big spike by Blue and 3000 has one by red.
And THIS IS what plants want and need. Photosynthetic active radiation. (PAR)
^this graph is kinda off on the red^
And THIS IS what plants want and need. Photosynthetic active radiation. (PAR)
^this graph is kinda off on the red^
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VegasWinner
Well-Known Member
Far Red puts them to sleep quicker, allowing for more maturity, IR triggers trichromes, Deep Red prmotes healthy plant growth and does cause some stretch, as well. I alos use Royal Blue during veg phase to shorten node length and promote healthy plants. I do not know of an LED that reduces pests. I use NEEM oil for that purpose. peace
Vegas
Airwalker16
Well-Known Member
Rayne
Well-Known Member
I know I am replying to an older post. However I do not care.
Yes. Do add high CRI versions instead of just the highest bin/highest luminous flux versions. Granted not everyone wants the highest CRI possible. If you give people more options they will buy what is available to them.
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verticalgrow
Well-Known Member
@welight
Do you sell Large heatsinks to accommodate cxb3590 COB's for using a 1800ma driver?
This is the driver: http://www.cutter.com.au/proddetail.php?prod=cut2934
Do you sell Large heatsinks to accommodate cxb3590 COB's for using a 1800ma driver?
This is the driver: http://www.cutter.com.au/proddetail.php?prod=cut2934
