Hi guys, I'm doing my first grow right now, Think Different organic under 180w Led Pannel. As I read a lot yesterday, I noticed RH was really important in this world so, I was wondering what would be a good RH for growing, in early stages and advanced stages. I'm running around 40% RH in my room, which I think is too low for a good plant developpement 
Any advices or help would be awesome

Any advices or help would be awesome