lux meter is a device which measures the intensity of light that falls on any object in the environment under the given brightness, and it has several uses. There are two types of lux meters according to the variants of applications or the purposes for theyget used for. One is Reflected Lux light meter, used for measuring the light reflected from the object that is being photographed.
Next is incident lux light meter that gets positioned near the object being photographed. There are digital lux meters too that work well when the batteries are replaced from time to time.