LED flashlights have better environmental benefits, with no ultraviolet and infrared rays in the spectrum, neither heat nor radiation, and low glare. They are recyclable, pollution-free, and free of mercury. They are cold light sources and can be safely touched, making them typical green lighting sources.

A flashlight is a handheld electronic lighting tool. A typical flashlight has a battery powered bulb and a focusing mirror, as well as a handheld case for handheld use. Although it was a fairly simple design, it was not invented until the late 19th century because it had to be combined with the invention of batteries and light bulbs.