Photometric System

A photometric system refers to the method of measuring and describing light based on how humans perceive it. It includes units like lumens (the total light output), lux (light per unit area), and candela (light intensity in a specific direction). By using these measurements, we can evaluate how bright a light source is, how it affects visibility, and how it can be effectively used in different environments, such as homes, offices, and streets. This helps in designing lighting that enhances safety, comfort, and aesthetic appeal.