Cpw, wow I did not know that thanks for the link about vdp. That's great information in my case. Since I deal with high Temps and high humidity it seems to naturally work in my favor. 85 degrees and 70% humidity is something I can achieve in my native environment. Interesting that as heat rises, a higher humidity is beneficial for prime vdp. Most growers demand 76/55. But 85/70 gets the same results with less energy in my case. Thanks again.
What other advanced sites are your favorites?
Hulk, I tried a dehumidifier but they generate a lot of heat. The night switch is a good idea though. I will try that. I have plenty of breeze so can't tweak that anymore. Thanks for you help and suggestions.
I have about 5 years experience now so I'm not a beginner but not an expert either.
In winter I don't have a problem. Temperatures are 60-80 F, relative humidity 30-60%. I use LEDs inside a 3 by 8 space with a sloping roof. I understand plants like temperatures a few degrees hotter when using LEDs. Is that correct?
The problem is my temperatures in summer go from 84 to near 100. Air conditioning is obviously a great solution but is to complex and expensive for me at this point. The relative humidity is 60-70%. I have 2 air circulators and 2 rotating fan so the breeze is nice.
The night time temperatures are in the 80s and the highs would occur after the lights are on for many hours so the plants get a break at night. The Temps ramp up sometimes near 100 but not everyday over several hours and ramp down at night to the 80s.
If I use more wattage the heat goes up fast and go over 100 on occasion. I am on the lower side at 50 actual watts per sq ft led. I would use 100 if I didn't have a heat issue. So that's why I want to know about tradeoffs.
I use burple leds and have one board and I will eventually replace the burple with the boards. I love the new board.
My board is an hlg 65 v2 4000k for veg and love it. I will get hlg 100 respec for flower to replace generic old burples (2017 or so). Are the board temperatures that much better. Don't want to throw out the burples and spend more $ if I don't save a substantial amount of heat.
The board seems to cover more area with less wattage so that should help. Did I mention I love the itg 65 v2 4000k I have? Is there a better choice? I doubt it.
The boards still generate heat but are they much better than burples in terms of heat, I don't think so do you.
My next experiment will be to grow Amnesia haze as that plant is more heat tolerant. That plant should thrive in my environment? No?
I have a question I can't seem to find the answer to. Perhaps you can help me.
I understand that temperature, humidity and light intensity must be as close to perfection as possible.
However I find my self in the situation where I can no longer control heat and humidity using ventilation. Ventilation is optimal. I do not want to make the transition to an air conditioned space due to complexity and cost.
So my question is this? Which is more important? Heat or light intensity? For example to lower the temp 3° Should I use less light wattage. Or is light intensity more important than the 3 degree drop in temperature.