Hello everyone.

I heard that Realistic Lighting Overhaul, Enhanced Lights and FX and Climates Of Tamriel can play well together. I'm just wondering how i should go about installing theses and in what order.

Not all 3 of them, and not fully installed. You have to pick and choose what you like for interiors (houses, caves, ect.) and what you like for exteriors (outside world and even cities [technically a seperate cell from interiors and the "outside world" because of the load screen]). I personally have ELFX for interiors and RLO for exteriors.