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Best led light for co2 bag

xBluex

xBluex

New member
Hi so I was wondering what would be the best led grow light to work with a co2 bag in a 2x4 grow tent? I don’t want to try anything else for right now, I just wanna see this co2 bag and what it can do. I’ve read that if using co2 it’s best to keep at 1200-1500 ppm of co2 and in order for that to happen you’ll need lumens around 7,500 - 10,000. I’ve been trying to look up the different led lights and right now I’m running a phlizon 600w, I believe it’s 60 10w pcs. Most lights I’ve reviewed go by PAR instead of lumens. I also read that it’s better to keep at temps running around 85% - 95% though with co2 they handle better in high heat. Would anyone have any suggestions as to what led light I could look into? I don’t want to try anything else at this moment, this question is purely for the led light that would work best with a co2 bag. Thank you in advance.
 
I will share my opinion on the subject of Co2 and lights based on my understanding on the broad field of plant science. However i can only provide information on what to look for with lights regarding Co2 implementation and not the products themselves.

In order for cannabis to benefit from Co2, there needs to be a saturation level of light where light no longer becomes the limiting factor, but Co2 does. This is because if there is not enough light to saturate the light independant reactions, then the concentration level of Co2 in leaves does not exhaust. Meaning any increase in Co2 has no effect on the photosynthetic efficiency.

Cannabis has been shown to start becoming co2 limited at around 500umols. Which means a light source would need to provide photon flux levels higher than 500umols per square meter for Co2 to start becoming beneficial. For reference, 400 watt sodium discharge provides roughly 500umol per square meter. Which is not enough light to saturate the light independant reactions for Co2 to become beneficial. 600 watt sodium discharge provides roughly 900umols per square meter. This is the stage where light energy saturates enough for Co2 to become beneficial.

As you may may have noticed i mention all metrics in PAR units, this is because photometric units such as lumens are not reliable metrics for assesing LED lights. You may want to look at some of my articles for further clarification on these related subjects.

To asses the viable use of Co2 supplimentation with certain LED products, you are going to want to find the lights metric values in PPF. Some manufactureres are starting to provide these values, however most do not because it would show how poor their products actually are. Its a sad but true fact that most of the cheap LED products on the market, underperform in comparison to gas discharge technology. As such many manufacturers skew or even lie about the performance of their products. Even their equivalent wattages is unreliable data. With many i have seen, well underperform and measure less than what their advertised values state. For example your phlizon 600w has has no relation to the value 600w, whatsoever. They state its equivalent to a 400w MH/HPS however i would wager that at 100W input thats a complete lie. Even with the best efficient diodes at 3umol per watt, that would still not be enough to compare with 400w gas discharge.

RosettaStoned and Paracelsus may be able to direct you on some LED products.
 
Tell us about the "CO2 bag." Unless it's pretty massive and you have minimal air flow through the tent, it's probably not going to significantly increase the PPMs of CO2. Sorry, not to be a downer, but a weak source in an open system won't help much. Try a 20# tank from the welding supply for something a little more effective. Here's a site about planted aquariums but it's the same idea.
http://66pacific.com/co2/co2_setup.aspx
 
I could name a half a dozen lights that would work well with CO2, LED’s included but if you’re not in a closed system they won’t do you any good. May as well just throw your weed or money out the window. C02 works great only if all the other variables that can be maximized have been taken care of first. I can’t stand the Grow Boss but he has a great video explaining all the variables in the system that should be taken care of first. I know you made it clear you don’t care that you only want to do it this way. Most valuable thing I learned here at grow weed easy is patience.
 
DANGERDAN yes I am not going to be using that light, that’s why I’ve asked for which led might be effective.

@DoctorJohson the co2 bag is from a company called Exhale I believe, or at least it’s what the bag is called, it claims to be able to supply up to 1500 ppm of co2 for up to 6 months in a 4x4 tent and be efficient enough for anywhere of between 4-6 plants. I’m looking at using a 4x2 (l/w) by 6 (h) tent with a more powerful led light for only 2 at most 3 plants at a time. I have seen some review from customers and one in particular claiming he actually tested it and it did put out about 1200 ppm. There was also a company I can’t for the life of me remember which one talking about using it with satisfactory results only thing was that they said it would probably be best to change out the bags at 5 months, which was when they noticed that the co2 was significantly lower at that point.

Paracelsus yes I realize that it needs certain requirements/ criteria‘s for the co2 to be efficient or even work, such as I stated from what I’ve read at least they say to keep a steady 1200 - 1500 ppm of co2 you need at least 9000 - 10,000 luminous or somewhere around that, I’ve also read that it’s best to keep temp at 95% or at the very least 85% and I believe humidity between 60 - 70, not to sure.

I am well aware that that there are certain things that must be meant and many might not even do this or even suggest it but it’s something I’m wanting to try, I am going to slowly build a set up specifically for this hence why I am going to do it small first. I just need a led light that would work best with or at least thought to work best with co2 bags, the ones I’ve looked up mainly show PAR output so I can’t know if that would be the same, in fact some lights I’ve already had in mind I had to take another look due to the fact that lum and PAR are not the same or gauged differently.
 
For a 2x4 you are going to want to look for a light that puts out at least 500umols or more in PPF (photosynthetic photon flux), lumens will not be the best metric here for LED.
 
xBluex This interview with the Vitali from ChilLED.
rather than tell you more about CO2 this interview talked about how to measure and quantify the radiant energy from an LED. It’s reallyy cut through all the crap, Then Vitali and Grow Mau5 break it down. Hope this helps you understand how the radiant energy of the light not the luminosity is what matters.
 
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