luminous flux unit

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Related to luminous flux unit: luminous intensity unit
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Noun1.luminous flux unit - a measure of luminous flux per unit area
light unit - a measure of the visible electromagnetic radiation
lm, lumen - a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
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