Temp/RH Control for grow tent

Happy Thursday everyone
I have a 4x6x2 grow tent and have been having trouble keeping the temp and RH under control.
When I close the tent all the way it gets 90+% humidity and stays between 25-30*c. I am growing autos and have a 220watt led light. So I opened the top corner of the tent door and that seems to help keep the moisture down. The walls and floor were getting wet and dripping before this. I have a small fan circulating the air and a small electrical heater keeping it warm. I am thinking about buying this fan because it comes with a controller that can set temp and RH. But it is mainly used for crawlspace areas and I know that they make actual intake fans for grow tents. I just wanted to save some money. I don't need a filter for scent. Has anyone used this one before and can you give me feedback about my idea to try this instead of an actual intake fan? Thank you so much!!

Assuming you don't have an extraction fan, open one of the duct ports on the top or upper side of the tent and a vent on the lower side.
That will at least give the humid air a way out.

Keep a small clip fan at a minimum for circulation inside the tent.

90% rh with an electrical heater ain't a good idea unless it's a ceramic tube heater?

I'd look online for a second hand fan meant for the job.
It entirely depends on how your set up, if your say in a closet then venting that humidity straight into it rather than outside its going to be much the same.

How much is that AC infinity?

4in in-line extraction fan run constant, drop your humidity, if it’s the kind of heater i think it is that’s just dangerous, use a radiator heater if you have to. Ac infinity does make an in-line fan that hooks up to the same controller, but you never want still air in a grow so it’s better to run constant and dial in the environment outside of the tent.