Ohh haha I see what you mean. Well most portable AC's seem pretty simple. Just put water in them and good to go right? I do know the better ones come with an exhaust hose on the back for the hot air, so i'd probably point the AC directly to an intake hole in the tent, and have the exhaust hose reach towards the door to blow the heat underneath the closed door (though obviously all heat won't go out that way but need to keep door closed to bedroom so light doesn't come in.Now I feel like a real ass, I meant that if you couldn't handle dimming the led, installing an air conditioner would be miles beyond your technical capacity.
I'm sure i can handle the dimming if its just a screw driver and turning lol, i was more concerned about the voltage vs current adjusting and if only changing current could disrupt something. I'm a lamen with most electrical work haha and most handy things.