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Handheld flashlights are portable devices that project light to a given distance. They generally consist of a battery that powers a light bulb to generate light and a reflective surface that bounces the light forward. Flashlights are used by various professionals such as policemen, security personnel, and armed forces. They are also used in recreational activities such as camping and hiking or general-purpose lighting of domestic and industrial components. Handheld flashlights are available at various lumens depending on the application.