Overview
ISO/TS 7127:2023 - Light and lighting - Building information modelling properties for lighting - Lighting systems defines a standardized set of digital properties for describing lighting systems in Building Information Modelling (BIM) and product databases. The technical specification clarifies which attributes are needed to represent luminaires and sensing devices unambiguously, enabling reliable data exchange, improved data quality, and reduced misinterpretation in digital design, procurement and facility management workflows.
Key topics
- Property groups for lighting systems: organized tables cover Mechanical, Electrical, Emergency lighting, Photometric, Sensing device, Mounting & Accessory, Marketing, Operations & Maintenance, and Environmental properties.
- Attribute structure: each property is described with machine- and human-readable attributes such as GUID, ID, Name, Description, Symbol, Format/Unit, Value set and Examples - aligning with ISO 23386:2020.
- Data mapping & interchange: identifiers and value sets enable mapping between data providers and requesters for consistent exchange of luminaire and sensor data across databases and BIM platforms (including IFC-related GUID handling).
- IT-related metadata: provision for measurement methods, data types, status, creation/activation dates, versioning, deprecation, and replacement links to support lifecycle management of property definitions.
- Standards alignment: uses established vocabularies and units (CIE S 017, ISO 80000-7) and complements IFC/ISO BIM practices for interoperable digital lighting data.
Applications
ISO/TS 7127 is practical for anyone who needs precise, interoperable lighting data in digital workflows:
- Lighting designers & specifiers - to ensure product data sheets and digital models contain consistent photometric and mechanical data for calculation and coordination.
- Manufacturers & product data managers - to structure product data sheets and export consistent, machine-readable datasets for BIM libraries and marketplaces.
- BIM managers & consultants - to map and validate lighting properties across databases and integrate lighting into multidisciplinary BIM models.
- Software vendors & database developers - to implement standardized property schemas, GUID handling and value sets for luminaire and sensing device libraries.
- Facility managers & maintenance teams - to access operations & maintenance, replacement and environmental attributes for asset management.
Related standards
- ISO 23386:2020 - methodology to describe and maintain properties in data dictionaries
- CIE S 017:2020 - International Lighting Vocabulary
- ISO 80000-7 - quantities and units for light
- IFC / ISO 16739 and ISO 12006-3 - for GUID and BIM interoperability
ISO/TS 7127:2023 helps make lighting data consistent, searchable and interoperable across BIM, catalogues and asset-management systems - improving design accuracy, procurement clarity and long-term building operation.