Lux vs Cerda

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The lux (symbol: lx) is the SI derived unit of illuminance, measuring luminous flux per unit area. It is equal to one lumen per square metre. In photometry, this is used as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface. It is analogous to the radiometric unit watt per square metre, but with the power at each wavelength weighted according to the luminosity function, a standardized model of human visual brightness perception.

In English, "lux" is used as both the singular and plural form.The word is derived from the Latin word for "light", lux.

Source: Wikipedia

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Cerda is a comune (municipality) of the Metropolitan City of Palermo in the Italian region Sicily, located about 45 kilometres (28 mi) southeast of Palermo.

Cerda borders the following municipalities: Aliminusa, Collesano, Sciara, Scillato, Sclafani Bagni, Termini Imerese and Montemaggiore Belsito.

Source: Wikipedia