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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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Hampton () is an independent city in the Commonwealth of Virginia in the United States. As of the 2020 census, the population was 137,148. It is the 7th most populous city in Virginia and 204th most populous city in the nation. Hampton is included in the Hampton Roads Metropolitan Statistical Area (officially known as the Virginia Beach–Norfolk–Newport News, VA–NC MSA) which is the 37th largest in the United States, with a total population of 1,799,674 (2020). This area, known as "America's First Region", also includes the independent cities of Chesapeake, Virginia Beach, Newport News, Norfolk, Portsmouth, and Suffolk, as well as other smaller cities, counties, and towns of Hampton Roads.
Hampton traces its history to the city's Old Point Comfort, the home of Fort Monroe for almost 400 years, which was named by the 1607 voyagers, led by Captain Christopher Newport, who first established Jamestown as an English colonial settlement.