Pér vs Lux

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Pér is a village in Győr-Moson-Sopron county, Hungary. The settlement of the south-eastern part of the Bakony-Kisalföld reach the valley of the Győr Székesfehérvár with 81-number route, main Győr 15 km from the southeast can be found.

This transition from the countryside to the plains and hills Sokorói (Pannonhalma Hills) is. The average altitude of 132 meters.

Source: Wikipedia

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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