light intensity

How bright something shines

Light intensity is the amount or strength of light in a given area or from a given source.

In physics, it measures luminous flux per unit solid angle (candelas) or power per unit area.

In photography and everyday use, it simply describes how bright or dim a light appears: Adjust the light intensity on your screen to reduce eye strain.

Plants have varying light intensity requirements for photosynthesis.

Related

lux · illumination · radiance · color temperature · incandescence · blinding · foot-candle · strength · photosynthesis · contrast · glare · wattage · exposure · full sun · brilliance · fluorescent · beam · reading lamp

Categories
Opposites
brightness level

light intensitydarkness

Total absence of light

dimness · faintness · shadow · dullness · gloom

presence vs. absence of light

light intensityblackness

Complete absence of light

pitch black · lightlessness · void

Family

light, intense, lightly, highlight, twilight, daylight, lighting, intensity, lighter

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Known to kids · Used worldwide · Timeless · Rated G