sshz
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Ohhhh the compromise. Why do you think that 85 is too hot for the plants?The wife said I could use 2 rooms, if I did 3 crops a year instead of 4 and leave Xmas time smell free........lots to think about. One thing I'm pretty sure of though- 2 LED's in a room are creating too much heat.
I understand. That would be a good option other than adding an AC. My tent runs a bit on the hotter side but I think I make up for it with the airflow. As long as your leaf zone temp is cooler you shouldn’t have any issues. You will get it under control shortly. Along for the ride.Well, I do 4 indoor crops a year. My winter crops are always better. The rooms are cooler and it translates into a better end-product. You can also have more bugs problems if it's too hot, along with more watering (which leads to more humidity) and some other issues. The main reason I switched to LED was to lower heat, it seems to be backfiring. I have lots of options, including adding more ventilation, separating the lights, etc., etc. I want to be able to keep the doors closed in the room(s), so the heat will have to be manageable. I just have to be patient until I can get my 2 rooms harvested this weekend, before being able to deal with it more intelligently and patiently.
I did turn off one of the light off and the temps fell around 3 degrees. My thoughts right now would be to switch to an 8 inch exhaust fan, along with installing two 100 cfm inline fans outward directly above each light. If this doesn't work, I'll probably have to separate the lights into 2 rooms.
Are we going to get to see a journal of those fluence in action @Anthem?!
I was interested in the gray piece in between the 2 rows of leds on each bar. Do you know if they are some sort of a light or just part of the mounting system?Rather, go up to post #6 and look at my pic from the underneath. You'll see the 2 rows of LED's on each bar. The grey bar in the middle of the 3rd and 4th row is the driver housing, as I stated. So my plan is to add 2 100 CFM's exhaust fans to other areas of the room tomorrow, and I'll move in an 8 inch exhaust fan to replace the 6 inch after the harvest. IF THAT'S NOT ENOUGH, THEN I'LL HAVE TO ADD BOTH THE 6 INCH AND 8 INCH EXHAUST SYSTEM TO THE ROOM. I want the door closed at all times and I want the room in the mid 70's and will do what I have to to make it right. More work for this weary body.
Once you get into flower, I have found with the 1650''s they like to be about 12 to 18" away from the plant at 100 percent of intensity. Also found that having a control is pretty much a must to control the light intensity through out the grow. I am only aware of 2 controls for the gavita lights. One being the gavita one that I am not crazy about because it will not control much other than fans and lights. I am using the trolmaster control, kind of cool because you can just buy modules to do what you want. Also you have to get E adaptors for the fixtures to work with a controller.Thanks Anthem, I'll check it out. And yes, I was shooting for 78 degrees, which is where i was at with my HPS's........
The CO2 thing is actually pretty simple once you get it set up. I have used window units and they work get. I really do not bother with adding all kinds of seals to the door. with 4 lights in a room. I can usually get 2 weeks out of 20 pound bottle of CO2. For me CO2 is like 15 bucks a fill, so the cost once you get it set up is a minimum. And there is actually a benefit because when you are working in the room with lights on you can kind of tell the health of the grow by the CO2 solenoid going off. Once they really getting going in flower they start to eat CO2 at a faster rate.It appears to be part of the mounting system, as there's no LED's in that direct area. I do see some screws along the bar there so it has to be for structure/support I imagine.
Regarding your recommendation, you are correct sir. Numerous places are recommending 82 to 85 degrees, Black Dog states 85 degrees is ideal. Here is a summary per Black Dog for those wish to read it:
Expert Cannabis Growing Tips
Flowering temperature is ideally at 84 - 85 °F. This will help keep leaf temps at the Cannabis-ideal 88 degrees when using our LED grow lights. Vegetative temperatures can range from 75°-90°. However, ideal vegetative growth will occur at 85 °F and 60-70% humidity. Oscillating fans are key for...www.blackdogled.com
I feel a lot better now, just switching from an 6 inch to an 8 inch should be enough to lower the temp's to the proper range. Now I have to consider adding CO2, which I was hoping not to bother with.
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