Lux | |
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| State | |
Country | |
| Capital | |
| Population | 0 |
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.
Abha | |
|---|---|
| State | |
Country | Saudi Arabia |
| Capital | |
| Population | 450000 |
| Postcode | 62523 |
Abha (Arabic: أَبْهَا, ʾAbhā) is the capital of 'Asir Region in Saudi Arabia. It is situated 2,270 metres (7,450 feet) above sea level in the fertile Asir Mountains of south-western Saudi Arabia, near Asir National Park.
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