Spatial Lighting Considerations to Develop Sustainable Lighting Design

This study explores the dual role of lighting design within the broader framework of sustainability, emphasizing the need to balance technical efficiency with the subjective human experience of space. Light functions not only as a quantifiable physical phenomenon but also as a symbolic medium that shapes perception, emotion, and cultural meaning. Drawing on the metaphor of an iceberg to illustrate the layered nature of lighting, the research highlights how its often-overlooked qualitative aspects, such as spatial identity, emotional resonance, and user experience, are integral to sustainable design. Through a qualitative descriptive methodology supported by extensive theoretical analysis, the study examines how lighting can be used as a communicative and interpretive tool to enrich architectural environments. The findings underscore the importance of integrating both measurable performance criteria and experiential design strategies to achieve holistic and human-centered sustainability in built spaces.