m0useanswered grow question 3 months ago If you trying to save on money, maybe turn it on every 15 min for 5-10 min.
It is best to have it on all the time moving air constantly, but if its not possible. then you gotta do what you gotta do.
My unit only turns on when the temps or RH gets to high, and its comes on for 10min about every 10 min in my tent. and then in flower I just have it on all the time as the RH and temps are always higher.
Good Luck!