The International Association of Lighting Designers (https://www.iald.org/) published on 28th February 2025 a white paper entitled ‘Lighting Design for Health, Wellbeing and Quality of Light, A Holistic Approach to Integrative Lighting’. It was written by the IALD’s European Regulatory Affairs Working Group with assistance from members of The Good Light Group’s WG Science (https://www.goodlightgroup.org/).
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This paper is a comprehensive re write of IALD’s previous paper on the subject published in 2018. The past 7 years have seen substantial new work on the topic and a certain stabilisation of the metrics and recommendations for the non visual effects of light. In addition there is new knowledge relating to the beneficial non visual effects of Infra Red and Near Infra Red radiation.
Everyone involved with lighting from practitioners like manufacturers and lighting designers to end-users and Human Resource / Occupational Health organisations are realising the importance of light in its complete spectrum, meaning toward the IR and UV ends and not just the visible wavelengths, for healthy and happy lives in the 21st Century, where so much time is spent indoors and isolated from natural light.
This paper identifies existing published guidance on the topic including discussion of WELL standards and DIN/TS 67600:2021. It also provides guidance for implementation as part of a considered architectural lighting design. The white paper includes references to relevant published papers to allow practitioners to develop strong design arguments for the consideration of non visual benefits of good light.
A blog by: Kevan Shaw (EFLA | Kevan Shaw Lighting Design)
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