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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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Emirate of Dubai (Arabic mr@dbyW; pr. Imarat Dubayy is one of seven United Arab Emirates emirates. The capital of the Emirate of Dubai is the eponymous City, Dubai. It is located on the Persian Gulf coast in the Arabian Desert. It is bordered by the Emirate of Abu Dhabi to the south, the Emirate of Sharjah to the northeast, the country of Oman to the southeast, the Emirate of Ajman to the west, and the Emirate of Ras Al Khaimah to its north.
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