When the lights go out, the safest way to provide emergency lighting is with flashlights or battery-powered lanterns. Keep flashlights with fresh batteries in several places throughout your home and check them for proper operation regularly. Always keep a supply of extra batteries. Think about buying a rechargeable flashlight. Batteries might be hard to find in a disaster. 

Have flashlights ready in an easily accessible place and check batteries in flashlights and radios.