Do Keeping Lights On At Night Deter Mice. The suddenness of the light should startle some animals. Will keeping lights on keep mice away?
Lights also attract bugs, which are what bats feed on during the night, so they may brave the light momentarily to get a good meal. Because mice avoid danger, they may be scared off by bright, flashing lights or loud noises. Survival instincts cause them to avoid larger animals and being active at night helps mice avoid being seen by predators, as well as people.