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Lux (lx), illuminance
The lux (symbol: lx) is the SI unit of illuminance and luminous emittance. It is used in photometry as a measure of the intensity of light, with wavelengths weighted according to the luminosity function, a standardized model of human brightness perception. In English, "lux" is used in both singular and plural.
1 lx
is equal to
1,000 mlx
-
1,000,000
-
1,000
-
1
-
10-3
Lumen per square metre (lm/m²)
1
Lumen per square centimetre (lm/cm²)
10-4
-
0.09
-
10-4
-
1,000