But one problem still troubles you, how do you light the whole thing up? Setting up buildings is actually pretty easy in Fallout 4, but putting lights up is surprisingly difficult to figure out. First up, you need power of course. Build a generator of sufficient power for all the lights you want to setup. You can go small here, but it might be a better use of resources to build a big generator and hook other items up to it. Next pick a location where you want to put some lights.