Lux vs Arlon

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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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Arlon (French pronunciation: ​[aʁlɔ̃]; Luxembourgish: Arel, pronounced [ˈaːʀəl] (listen); Dutch: Aarlen, pronounced [ˈaːrlə(n)]; German: Arel; Walloon: Årlon) is a Walloon municipality of Belgium located in and capital of the province of Luxembourg in the Ardennes. With a population of just over 28,000, it is the smallest provincial capital in Belgium.

Arlon is also the capital of its cultural region: the Arelerland (Land of Arlon in Luxemburgish). The municipality consists of the following sub-municipalities: Arlon proper, Autelbas-Barnich, Bonnert, Guirsch, Heinsch, and Toernich. Other population centers include:

Source: Wikipedia