Only when I have a ventilation system solely for my Flora, will I keep it on. Other than that, I have my ghetto AC which keeps temps reasonable especially since we've been hitting 104F plus out here lately.
Tomorrow I should have enough cash to make a better one. It's going to have a double whammy, totally new idea. So I'm thinking, styrofoam cooler, fish pump, copper tubing (For makeshift radiator), fan and gooseneck ducting thingy. Now there have been a lot similar to this idea, but the difference with this idea is the radiator will be inside the cooler, so that the heat conduction is lowered and therefore it will work more efficiently, than the others with the make shift radiator outside of the cooler.
Basically the way it will work is, the fish pump will pump cool ice water through the copper tubing (Copper is one of the metals that holds cold for a long time). The fan will be pushing air into the cooler, and through the copper, the copper tubing will be in a grid right under the exhaust gooseneck ducting thingy. So you get cooling from the copper as well as cooling from all the 2 liters that are frozen in water, and since the copper is inside the cooling unit itself, it'll last longer and the condensation will not drip and make a mess because it's dripping right back into the cooler.
My ghetto AC right now works well, but this one will be a little more permanent and less messy. I have the cardboard ghetto AC design running right now, and it's funny because the outside of my cab will be like 84F and the inside of the grow area is at 76-78F lol, freaked me out a couple of times because I mixed up the inside and outside temps lol.