The Facts About Led Flashlights Traditional flashlights are powered by a battery and use conventional light bulbs to produce light. However, within the last ten years a new type of flashlight has hit the market. LED flashlights are increasing in popularity because they do not use as much battery energy as a flashlight with traditional light bulbs.
LED stands for light-emitting diode. LEDS are similar to very tiny light bulbs. Put very simply, they are able to light up because of electrons which move in a semiconductor material.