When the lights are off the humidity was up to 87% every day. When they are on it was anywhere between 35 and 50%. I bought an 1100 CF dehumidifier it only lowered to 78% when the lights are off and still 35 to 50% when they are on. The room is 4X5X 7’ high. There are 4 plants, 7 days into flowering. 8 weeks old total.
The temperature stays consistent at 80 to 82 when lights are on and down to 66 when they are off
400 Watt HPS 15” above the plants with CFL side lighting, no cool tube. A 6" fan blowing across the bulb.
A 6" exhaust fan with carbon filter. The air comes from a separate room into the closet and exhausts through the ceiling into another room. This fan is only on while the light are on. I can’t have this fan on for the off hours because it is to loud during the day. The lights are off during the day and on at night.
There are 2 6" fans blowing across the plants 24 hours a days
This is my second grow. They are doing much better than the first grow.
Should I get a bigger dehumidifier? The one I bought is an Ivation GDM20.