LEDS & CO2

by Shawn
(U.S.)

Hey man stumbled across your site while looking at the aquatek co2 regulator I just bought. I saw you had a section on lighting and since I have been using led lighting recently I thought I'd let you know how they have been working for me. First of all, the panels are crap, you are right there. 90w ufos with 1w diodes seem to do the trick. Even better is the new 160w 5 spectrum led that combines 3w and 1w diodes together for deeper penetration. Don't get me wrong, I even have a 50w ufo that is ok. It fruits but I usually move my larger plants over closer to the the 90w ufo and soon I will throw my 90w in my tent for starting seeds and then move the 160w badboy into my larger area. The thing is that the panels use half watt diodes they are ok for seeds and clones but thats it. I actually got rid of my 400w hps when I saw how the 90w ufo worked. I get very similar results with the 90w, not quite the same but the electric usage gets cut by 75% and my heat is finally under control The good models last like 50,000 some hours. I don't know I like them and won't switch back until I'm rich and can run 5 1000w hps systems through an air cooling system lol...

I did have a question for you though. As I stated in the beginning here, I recently bought the aquatek regulator. Seeing as how you endorse it I figure you must use it. My issue is I can't seem to dial in my exact ammount of ppm I release. I found a great co2 calculator on the hydrofarm site... but my issue is the flow rate of the regulator itself. I contacted the company and they said its setting on high was 54.78 cfm. So using the calculator my system should be on 25 seconds lol, that can't be right. My room is 8ft long by 3ft wide by 8ft tall. Essentially a nice closet. So you say put it on for 15 minutes and then after three hours or so turn the fan on to vent the room before the co2 comes back on. I have my timer set to come on for 1 minute because it won't go in increments of seconds, and i shopped like a week just to find a good timer that could be used in minute increments. So how exactly do you use your regulator? Is it on the lowest or highest setting on the flow meter? Personally I think they should put something on the knob so you can tell where to set it for what cfm. Looking around even the hydrofarm regulator which run like 150$ only have a 2.2 cfm setting for its highest setting, so I'm kinda confused here. Let me know what you think of my issue. Also my tank was just bought a month ago is already gone, my first meter is already empty looking. While it was on for 30 mins -1hr (before I got a BETTER TIMER), it shouldnt be gone already right?

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Answer from Stella/Simon:

Hi Shawn,

Man, you musta drank a pot of coffee before you wrote your email!

Not sure I even understood some of your details. Will hang onto your LED lighting info, may try to duplicate it. Just leery of LEDS, you know.

As far as CO2 use, we have only tried it in small grow closet setting, honestly; it sounds to me like you are trying to use it on a very large area, which will require LOTS of CO2 to make any difference, and yes, you will use it up quickly. We just turned the regulator knob on very low flow for 10 mins each day, but the lights need to be on at the time, and it gets HOT in the closet with the fan off, so watch the temp. So honestly, we eventually abandoned the CO2. But lots of folks claim it really helps. It's really hard to tell how much better you are doing without setting up a controlled experiment, though.

Hopefully others will tell how their LEDS or CO2 experiments worked for them.

Hope this helps!

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