Flashlights
Most all flashlights now use LED bulbs, which means you don’t have to worry about the dimness and quick battery drain of older incandescent flashlights. And because LEDs are so efficient (most of the energy they draw from the battery goes toward producing light, not heating a filament as with incandescents), you also don’t have to sweat replacing the bulb, since most LEDs are intended to last as long as the flashlight itself.
