Newbiee Advice would be Nice.. diy COB LIGHT for a 4x4

Crusher026

Crusher026

Active Member
The donwside to the this..
I cant find any grow journals with these..
Or maybe im looking wrong?
But those where what lurred me in to looking at COBs..
Like to see so Nice collas grown under the strips!
Any links?
 
N

Nutria

Well-Known Member
99% users of LedG forum grow weed
His builds are tailored for that kind of grow. Check the cannabis section btw

For flowering cannabis it is suggested to aim for 30-35w/sqft to reach a good amount of PPFD.
Now you have the total wattage needed, decided what kind of tech you want.
Strips? Find out how hard do you want to run them, 75% of max power? 50%?
The lower you run them, the higher the efficiency is and the closer you can hang them to the canopy without stressing the plants. If you run them soft you need more strips.
 
S

Sickomindo

Well-Known Member
Crusher026 said:
Haya guys!

I have been reading about COBs for quite a wile now.. (or actually i was a wile back and just tried to catch up with it again)
And my mind is dazzeling a bit..
Although i have had some education in electronics I have a bit of a pian in selecting the right setup..
Grow space would be someting like 4x4.
I want as much light as is reasonalbly possible in such area..
My initial plan was to get someting like the following..
4x Citizen CLU058 1825 3500k
On 2x meanwell hlg-240h-2100b
Or maybe for a bit more spread
8x Cree cxb3590 3000k and 3500k
On 2x meanwell hlg-240h-1750b
Not shure yet but this is what i figured out so far..
I could probably go bigger but dont really
Know what the sweet spot will be..
Im planning a rdwc grow so wont be possible to move the plants around..
Also its gonna be a allround grow space aswell. From seed(or clone)2 weed..
At least for now..
I planning to dim my lights anyway, so al little overkill would be sweet when needed.
I also read about wiring cobs parallel but cant really onderstand how that works out and what the adventage would be/ where that choice would come from..

So that would be all my questions for now i guess ;p

Long story shot please help me get the most bang for my bud!
(Budget not realy set..and not in a hurry)
What would you guys get?!
10000x thanks in advance!
Click to expand...
Here's what I have a cob/ quantum board system on one 30"x30" frame. I also have a 4 x 4 tent The Cobs are 3500 K and the quantum board is 3000 K both together is a total of 560 W. I also have two more quantum boards outside lighting but not needed much.
 

Attachments

Crusher026

Crusher026

Active Member
Damnnnnn! That packs a serious punch!
Those budz man! Grown form seed 2 weed under this setup?
Can you give me the total specs of the light and your grow room?
 
S

Sickomindo

Well-Known Member
Crusher026 said:
Do you know what COBs and drivers are used in your light?
Building a "hybride" seems the bomb!
Click to expand...
I know the cobs from timber that are 300 W those 6 R with a dimmer and 3500 K and they are citizens. The driver I'm not sure I'll take a picture of it
 
S

Sickomindo

Well-Known Member
Crusher026 said:
So I've been looking on Ali and found these.. any good?
https://app.alibaba.com/dynamiclink?touchId=60749913712&type=product&schema=enalibaba://detail?id=60749913712&ck=share_detail&ck=share_detail&shareScene=buyer
Click to expand...
Someone else could tell you. Tbone on grasscity and others is very knowledgeable on these areas I do know you might wanna watch out for being screwed on fake boards that look exactly the same but dont have the ppfd that the true Samsung does. That don't mean that isn't a good or great deal I would like to see a side-by-side
 
You must log in or register to reply here.
Top