What the lights go out, don't be screwed. You think that little drugstore flashlight is good enough? Give it an hour until it flickers dead and leaves you blind. The Solarforce M6, though—that's your pint-sized lifeline.
God created light on the first day because without light, it's impossible to do anything. When the lights go out—maybe because of, I don't know, a a hurricane—I want a mega-powerful, super-efficient LED flashlight in my sock drawer, not some cheap plastic piffle that'll dim out on me.