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A flashlight typically holds and emits a range of light output depending on the brightness setting and type of bulb or LED used. Modern flashlights can have a light output ranging from a few lumens (low setting) to several thousand lumens (high setting).
The first flashlight was made of a battery, light bulb, and a casing to hold them together. It was invented in the late 19th century by British inventor David Misell.
Flashlight
A flashlight typically produces white light, which is a combination of all visible wavelengths of light. The light is usually emitted from a light bulb or LED located within the flashlight.
A ray of light from a flashlight is a narrow beam of light that travels in a straight line away from the flashlight's source. It illuminates objects in its path and creates shadows when blocked by an opaque object. The intensity of the light decreases with distance from the flashlight.
Another name for the beam of light from a flashlight is a "light beam" or "beam of light."