Alright I just changed everything around Ill have the fan on 24/7 and the dehumidifier outside the tent and see how it goes
Nizza's got it right about the controller. I have two of the AC Infinity Controller 69 wi-fi which I think were about $100 US when I bought them last fall. You can set the VPD in your tent to whatever you want and the controller automatically adjusts fan speed to get you there so long as you keep the environment of your lung room cooler and dryer than your tent. During lights out, I have my fan set to full on to control humidity but I let it do its thing to automatically adjust VPD while the lights are on. AC Infinity fans are nice (probably not as long lived as an old can fan) but the new controllers make it easy to control environment. And it is kind of fun to use the app to make adjustments to dial in temps, humidity and VPD. I use one controller to control the environment of my lung room (dehu, exhaust, intake, heater) and one controller for the tent itself (lights, heater, intake). I've read others express security concerns about the app though.