Application of Ergonomic Lighting Indicator in Workplaces: A Comparative Study in Two Different Climates

Background: Light is essential to many facets of human endeavors and is not only required for vision. The prevailing climate in the areas where workplaces are situated might moderate good lighting conditions, which are described as those that balance human needs. This study aimed to clarify how the Ergonomic Lighting Indicator should be used in workplaces while considering two distinct climates. Methods: Utilizing the Ergonomic Lighting Indicator questionnaire, the current investigation was conducted. A total of 140 volunteers who worked in indoor environments (70 in each climate condition) took part. Spider charts and descriptive analysis were employed. Results: In Isfahan City, practically every employee expressed complete satisfaction with the natural lighting’s quality. There was more visual comfort, according to workers in the province of Isfahan (p = 0.03). Except for the empowerment rating (p = 0.03; Mazandaran > Isfahan), Isfahan had greater scores on the Ergonomic Lighting Indicator than Mazandaran (visual performance: p = 0.02; vista: p = 0.01; vitality: p = 0.04). Conclusions: Based on this study, the use of Ergonomic Lighting Indicators to evaluate light quality is acceptable. In addition, this instrument can be applied in a variety of nations with diverse climates.