Lumen is the unit of luminous flux, which measures the total amount of visible light emitted by a light source per unit of time. It quantifies the brightness of light as perceived by the human eye, regardless of the direction ...
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Lumen is the unit of luminous flux, which measures the total amount of visible light emitted by a light source per unit of time. It quantifies the brightness of light as perceived by the human eye, regardless of the direction ...