Let me break it down a bit. I'm building my tut maze, and wanted to add some pulsating/flickering lights at random points to give it more of an atmosphere that suggests something is very wrong. I might also pull the light trick in Cosmodread, where you can steal batteries that power the emergency lights and reuse them elsewhere. At that point, the lights can only be reused so many times, and will be used up if you reuse them too often.
