Professor Suk delivered a talk at the WLED-5 conference held in Jeju. She mentioned abou the affective quality of the lighting especially since the LED became available and adequate for the main lighting. In her presentation, some case studies of CED Lab were presented and they were the LED lighting for food to enable an appetitative experience, the lighting interface design for the Daeduk Elementary School, and so on. Since the conference mainly focuses on the technological development and concerns of the LED lighting, her contribution was appreicated to help engineers keep in mind of users’ aspect.