Utterly Noob "?" What happens to light? Hey, this is my first post, and I know this is a rather rudimentary question. But, I've always wondered, why can't you see light after you turn off a light switch. Is light photons, and if thats the case what happens to them when electricity stops going to the light. They don't just "die" do they? What form (of matter/energy) do they change into after we can't see them anymore?