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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.
Essarts-en-Bocage | |
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Essarts-en-Bocage is a commune in the Vendée department in the Pays de la Loire region in western France. The municipality was established on 1 January 2016 by merger of the former communes of Boulogne, Les Essarts, L'Oie and Sainte-Florence.
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