A flashlight can be a lifesaving tool in certain situations. That may be particularly true for a Faraday or shake flashlight due to their unique mechanism.

All flashlights may look the same to you, but high-intensity discharge products get their own classification for a reason — they get seriously bright.

Flashlights used to be relatively simple devices that featured simple on and off switches, a fixed brightness setting, and few other features. Like virtually everything else in the world, ...