What is illumination definition?

Illumination refers to the amount and the quality of light that is present in a certain space or environment. It can refer to artificial light, such as that produced by light fixtures or bulbs, or natural light, such as that produced by the sun. The level of illumination is typically measured in lux, which is the standard unit of measurement for illuminance. Illumination plays an important role in many areas, including photography, architecture, and theatrical productions. It can also have a significant impact on our mood, productivity, and overall well-being. Proper illumination design is important to ensure that a space is adequately lit for its intended use.