There are several different brands of shake lights, and they are not all constructed equally, but it's fair to say that many of them are built for rugged use. 7. Because they're way cool!

These aren't you grandfather's flashlights (although your grandfather may have one by now). 3. Models that come in various translucent colors look especially cool when they're on.

Put one in your car's glove box, one in your kitchen, one in the tool box, one in the garage, one in your R. Housed in a clear shatterproof high-tech casing, a shake flashlight can operate in extreme hot or cold environments without diminishing performance. Set it and forget it.

This makes shake lights more environmentally friendly than battery powered flashlights. And there's probably nothing more frustrating than reaching for a flashlight, only to find out it is completely dead. A shake flashlight needs no batteries because it uses the Faraday Magnetic Method to recharge the flashlight again and again.