I'm not sure if it's implemented or not, but it's a fairly basic request in my opinion. I'm often stupid, and it can be a PITA trying to navigate around my house, in the pitch black, especially if I've freshly spawned in there and haven't got spare NVG's lying around. Maybe an option in the house menu to turn lights off and on. Hopefully nothing too complicated? Feel free to laugh at me and call me an idiot if this is already in game and I just don't know how to use it