As the world continues searching for answers to more energy efficient devices, LED Flashlights are one that is already available. They will provide thousands of hours of light while using much less draw on their battery source than older type incandescent flashlights. The LED or Light–Emitting Diode is a semiconductor that has been used in electronics for many years but has only since the turn of the millennium found its place in flashlights. This should not to be mistaken as a replacement bulb for the standard incandescent light bulb, rather LEDs are attached to circuit boards with other components that allow electricity to pass through it creating the light.
There are several advantages to an LED flashlight over the incandescent type. The new LED flashlight is a tougher assembly that is virtually unaffected by ordinary bumps or crashes to the floor. The old standard uses delicate glass bulbs, filaments and supports that are extremely fragile under normal shock and vibration. An LED light is also a solid state assembly void of any gas or liquid found in some incandescent bulbs. The LED flashlight emits almost no infrared radiation as opposed to incandescent lights that send out more than 85% infrared outputs. This difference means that overall LED flashlights are much more efficient at producing light. LED flashlights are constructed to electronically maintain a constant level of light, even as the battery life fades. This is in sharp contrast to the incandescent light bulb that dims as batteries lose their strength.
In this world where saving money and energy has become very important, the LED flashlight makes sense. The consumer who buys an LED flashlight can be assured that in any situation requiring light, even for an indefinite length of time, they will have a reliable source in the LED flashlight.