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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.
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Lesko [ˈlɛskɔ] (or Lisko until 1926; Latin: Lescow, alias Olesco Lescovium; Yiddish: לינסק-Linsk) is a town in south-eastern Poland with a population of 5,755 (02.06.2009). situated in the Bieszczady mountains. It is located in the heartland of the Doły (Pits), and its average altitude is 390 metres (1,280 feet) above sea level, although there are some hills located within the confines of the city.
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