Specifiers Demand Modular, Circular Luminaires

The drive for circularity is formalized in standards like CIBSE's TM66, which provides a framework for comparing the circular credentials of different luminaires. This allows specifiers to move beyond just operational efficiency and assess a product's entire lifecycle, from material sourcing to end-of-life, using tools like Life Cycle Assessments (LCAs). To facilitate this, "material passports" are emerging as a critical tool, providing a digital record of all components and materials within a luminaire. Spearheaded by firms like Orms Architects, these passports, often accessed via a simple QR code, detail a product's potential for reuse and remanufacturing, turning buildings into "treasure troves" of future components. The EU's Ecodesign regulations are expected to make these Digital Product Passports mandatory for luminaires in the coming years. Human-centric lighting principles are also being integrated, with standards like the WELL Building Standard v2 mandating specific levels of Equivalent Melanopic Lux (EML) to support circadian rhythms. Designs must deliver sufficient melanopic lux for at least four hours a day to enhance alertness and well-being, a metric that is now a key consideration in spaces designed for health and productivity. On the technology front, AI is transforming building automation by optimizing lighting based on real-time occupancy, daylight availability, and even user behavior patterns. These intelligent systems can reduce energy consumption and integrate with other building functions like HVAC and security, creating truly responsive environments. Control protocol discussions now often center on the expanded capabilities of DALI-2, which offers improved multi-vendor interoperability and support for a wider range of devices like sensors, compared to the original DALI standard. Concurrently, the Matter protocol, backed by tech giants, is emerging as a unifying standard for smart home and building devices, promising simpler integration across different ecosystems. Leading architectural publications are showcasing innovative modular designs that embrace both aesthetic flexibility and circular principles. For instance, *Dezeen* has recently featured stackable resin wall lamps and lighting systems made from second-hand glassware, demonstrating a clear industry trend towards adaptable and repurposed materials.