In practice, many projects, stages, or auditoriums invest heavily in lighting systems, using equipment from reputable brands. However, once these systems are put into operation, various issues often arise. The common problem is not the choice of incorrect equipment, but rather the lack of a well-structured lighting consultation from the very beginning. When lighting is not properly calculated according to the actual space and usage requirements, it is difficult to achieve the desired performance, even when high-value equipment is used.