New grow tent LED lighting advice needed!

Axelbro

Well-Known Member
Hey there guys,

So ive always used HPS lights and now im finally converting to LED lights.
And this will also be my first grow in YEARS.
So it could get interesting

Im only doing a small grow of about 4 plants in a tent that is 120x120x200cm

The lighting i have is :

2x 120w Quantum Boards 3000k
2x 100w Cree CXB3590 5000k
1x 100w Cree CXB3590 3500k

Total : 540w

Will this be enough?
Do i need any other type of lighting also?

Thanks :)
 

Axelbro

Well-Known Member
I have decided to add a 1000w BESTVA led In the mix too,some cheap light but it has ok reviews from what ive seen.

So ill be running the “1000w BESTVA 100x10w double chip” light in the centre over the canopy and then the 2 Quantum Boards beside it along with the 3 CXBs.

Guess it might be a little overkill but better to have more available light for the future anyway.

Ill be putting up a grow journal of the new grow once i have recieved everything and all is set up.

The strains i will be growing are

1x wedding cake
1x gorilla glue #4
1x girl scout cookies
1x northern lights

(I have ordered the seeds from supremeseeds,
Have never used their services before,yall recommend it?)


Anyway Input is well appreciated from anybody who thinks otherwise! :)
 

coreywebster

Well-Known Member
You have all the heat sinks and drivers for those cobs and boards?

All those lights will piss all over that 185w bestva , one of your other lights will put out more light.
 

jjng5

Well-Known Member
From my research Blurple lights are way outdated and not worth their cost anymore, their power consumption, or heat generated in today's LED market. Put that same cash into COB or QB's. It's not even a cost decision anymore. SWIM just purchased some inexpensive "1800W" (300W from plug) x6 COB at $96/ea on eBay with 2 year warranties and purchased 4 of them to supplement his air-cooled HPS lights and provide better spectrum. Recommendation would be to return or cancel your order on the Blurple light.
 

Axelbro

Well-Known Member
From my research Blurple lights are way outdated and not worth their cost anymore, their power consumption, or heat generated in today's LED market. Put that same cash into COB or QB's. It's not even a cost decision anymore. SWIM just purchased some inexpensive "1800W" (300W from plug) x6 COB at $96/ea on eBay with 2 year warranties and purchased 4 of them to supplement his air-cooled HPS lights and provide better spectrum. Recommendation would be to return or cancel your order on the Blurple light.
Ok thanks for the info,i havnt paid for it yet so its still waiting in my cart,guess ill just get another 3500k Cob then.

And yes i have heatsinks on all :)
 
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Axelbro

Well-Known Member
Don't be swindled by the nonsense of the false, full spectrum banner... You are eons ahead of that stage lighting, with your QBs and those COBs . No sense contaminating your tent with pastel hues.
What you have now, is already at a considerable level of badassness.
Haha ok thanks man,Im new to this LED game and i was pretty certain the lights i had were of much better quality,i just didnt want to be missing out on different spectrums you get with that color shit,guess thats all bollocks then. Haha oh well,glad i didnt buy it atleast!

Im so excited for this grow!
:bigjoint:
 

Chip Green

Well-Known Member
guess thats all bollocks then
Bollocks is too extreme, there are benefits to specific spectrum tuning, but the attempt those types of "lamps" have made at those types of advanced methods, do not live up to the expectation.
Typical white LED (like you have) is what I consider "full spectrum".
 

Axelbro

Well-Known Member
Bollocks is too extreme, there are benefits to specific spectrum tuning, but the attempt those types of "lamps" have made at those types of advanced methods, do not live up to the expectation.
Typical white LED (like you have) is what I consider "full spectrum".
Ok gotcha!

Thanks again :lol:
 

Axelbro

Well-Known Member
Can somebody explain to me in short why the Kelvin temp of the LED lights matter if they are full spectrum in nm mesurement ?
And what is the difference?
And what is the best In LED light Cobs and QBs 3000k/3500k/4000k/5000k for growing quality buds?

I always thought that the 2700k lights or warm red what have you,were for flowering and the blue lights for veg.

Alot of my knowledge seems out dated and i am trying to learn everything again from scratch,sorry For all the questions.

(Very baked)
 

jjng5

Well-Known Member
Can somebody explain to me in short why the Kelvin temp of the LED lights matter if they are full spectrum in nm mesurement ?
And what is the difference?
And what is the best In LED light Cobs and QBs 3000k/3500k/4000k/5000k for growing quality buds?

I always thought that the 2700k lights or warm red what have you,were for flowering and the blue lights for veg.

Alot of my knowledge seems out dated and i am trying to learn everything again from scratch,sorry For all the questions.

(Very baked)
I'm interested in seeing the answers as well. I was always told too that 2700K produces the most usable amount of light (red) in flowering and 6500k the most usable amount of light (blue) for vegetative growth. "Full spectrum" sort of sounds like a marketing term that might as well say "wasted light" as far as I'm concerned. Ie: a light high in green light is wasted energy as plant leaves cannot absorb this for photosynthetic activity. I believe that nm refers to wavelength and kelvin refers to color temperature and that there is a relationship between the two when discussed as "peak wavelength" and kelvin. My understanding is that 2700k kelvin color temp. will produce wavelengths within a range but it's "peak wavelength" has a direct relationship to it's color temperature. I'm curious to see where others weigh in on this though...
 

Axelbro

Well-Known Member
I'm interested in seeing the answers as well. I was always told too that 2700K produces the most usable amount of light (red) in flowering and 6500k the most usable amount of light (blue) for vegetative growth. "Full spectrum" sort of sounds like a marketing term that might as well say "wasted light" as far as I'm concerned. Ie: a light high in green light is wasted energy as plant leaves cannot absorb this for photosynthetic activity. I believe that nm refers to wavelength and kelvin refers to color temperature and that there is a relationship between the two when discussed as "peak wavelength" and kelvin. My understanding is that 2700k kelvin color temp. will produce wavelengths within a range but it's "peak wavelength" has a direct relationship to it's color temperature. I'm curious to see where others weigh in on this though...

Interesting! And thanks for the reply.

Does anybody else care to weigh in on this topic,and has accurate information and scientific understanding of this and could explain it ? bongsmilie
 

Chip Green

Well-Known Member
https://www.rollitup.org/t/the-ideal-spectrum.981395/

If you're looking to get some max nerd on, start here.
The OP in that thread, and many of the other posters, have a comprehension level of these concepts so advanced, reading their works often reminds me to stay in my lane....

I have used 3000k, 3500k, 4000k, 5000k, combos of all listed in my strip builds/rebuilds, both in VEG and FLW scenarios, and all I know is that, MY growing skill/ environmental control is nowhere near the level required to be splitting those types of fine hairs....
 

Axelbro

Well-Known Member
https://www.rollitup.org/t/the-ideal-spectrum.981395/

If you're looking to get some max nerd on, start here.
The OP in that thread, and many of the other posters, have a comprehension level of these concepts so advanced, reading their works often reminds me to stay in my lane....

I have used 3000k, 3500k, 4000k, 5000k, combos of all listed in my strip builds/rebuilds, both in VEG and FLW scenarios, and all I know is that, MY growing skill/ environmental control is nowhere near the level required to be splitting those types of fine hairs....
Ok thank you sir!

I guess i sont really need to know im just curious and want the best possible lighting for my babys! :bigjoint:
 

Axelbro

Well-Known Member
https://www.rollitup.org/t/the-ideal-spectrum.981395/

If you're looking to get some max nerd on, start here.
The OP in that thread, and many of the other posters, have a comprehension level of these concepts so advanced, reading their works often reminds me to stay in my lane....

So im having second thoughts on what lights to get...

3x Samsung LM561c 3000k 200w boards
Total 600w

Or

2x 120w Quantum Boards 3000k
And
3x 100w Cree Cxb3590s ?
Total 540w

What you think ?
 

Chip Green

Well-Known Member
It comes down to application. One real benefit of DIY, is nearly every piece of material is reusable. So no matter what you collect and use, it most likely will have a purpose indefinitely. You cant go wrong with any of the stuff you have listed above. Once you hit the threshold of where efficiency is "good" enough, what is BEST, is really irrelevant in my opinion.
You get to be the decider....
 

Axelbro

Well-Known Member
It comes down to application. One real benefit of DIY, is nearly every piece of material is reusable. So no matter what you collect and use, it most likely will have a purpose indefinitely. You cant go wrong with any of the stuff you have listed above. Once you hit the threshold of where efficiency is "good" enough, what is BEST, is really irrelevant in my opinion.
You get to be the decider....
Ok thanks for the advice! :)
 
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