I know I'm bumping a slightly older post, but I was about to make a post like this of my own and grave digging seems better than making a duplicate thread.
I totally support ceiling lights, in fact I wish we could do more ceiling stuff. Ceiling fans to gently lower temperature for a low power cost, ceiling windows (skylights) to let some natural light in but maintain temperature, smoke detectors to alert sleeping colonists about fire (yeah you can draft and undraft them to wake them up but that's kind of lame)
more ceilings!
I totally support ceiling lights, in fact I wish we could do more ceiling stuff. Ceiling fans to gently lower temperature for a low power cost, ceiling windows (skylights) to let some natural light in but maintain temperature, smoke detectors to alert sleeping colonists about fire (yeah you can draft and undraft them to wake them up but that's kind of lame)
more ceilings!