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The Functionality of Flashlight
Flashlight is a portable power tool that is the source of light to illuminate and battery operated. Usually the light source is from a small incandescent light bulb or fluorescent lamps known as LED lights. The design of a typical flashlight is comprised of a light source mounted in a parabolic reflector or another shape, a transparent lens to protect the light source of the damage, a source of energy (ie battery, and an electric switch.
Flashlights are generally used in places that are dark to light something in the vicinity. Flashlights can be used by anyone for example in case of a power failure, for the mechanics, people who fix electrical installations, workers in mining, and so on. In the context of the communication, the flashlight can be used to convey the Morse code in the scouts.