According to Wikipedia,
Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants.
The calculator encyclopedia converts 12 units of illumination. These units are:
- Candela Steradian/sq. m
- Lumen/sq. m
- Lumen/sq. cm
- Lumen/sq. ft
- Watt/sq. cm (at 555nm)
To commence this conversion, proceed to the Calculator Map, click on Light Switches under Switches (Unit Conversion).