Light meters

A light meter, photometer or lux meter is a device for measuring the light intensity, often expressed in lux. Measuring the light intensity is important, for example, for workplaces, offices, schools, hospitals, in sports, in photography (exposure meter) etc. As the distance from the light source to the object to be illuminated increases, the light intensity is squared. off. Therefore, the lux meter must be placed at working height for a correct measurement of the light intensity.