LEDFlex has announced that it is now providing both TM65 embodied carbon calculations and TM66 circular economy assessments for its product range.
The independent UK brand, whose markets include the Middle East and North America, says the data will cover both its flexible and rigid LED products.
It’s expected that the company will use TM65.2, a specific lighting version of Cibse’s Technical Memorandum 65 for embodied carbon in products.
It’s an increasingly accepted metric for measuring embodied carbon.
This special lighting version includes new materials, special definitions and acronyms from the lighting sector and product case studies from 18 luminaire manufacturers.
The TM66 metric, meanwhile, gives a number between 1 and 4 to indicate a luminaire’s alignment with the circular economy. At the end of the assessment a total is generated, and a high score indicates a lighting product with good to outstanding Circular Economy credentials.
A score of 1 indicates the status quo while 3 is excellent and 4 is outstanding.
Although both TM65 and TM66 are self-certification standards, a number of independent verification services are available.
Both documents are designed to enable lighting designers, specifiers, lighting engineers and manufacturers to better understand the light fittings that they are specifying.
This information can then be used to guide the choice of lights used for a project or independently for product analysis.
The luminaire data generated by using the tools can be used to inform the lighting design’s contribution of embodied CO2 equivalent (ECO2e) emissions for buildings.
This information is also of use to architects and sustainability teams during key construction stages — from early design, to construction and closing-out — to demonstrate and confirm that project objectives and targets are being met with a clear line of sight to delivering strategic requirements.
Both documents do not aim to replace Environmental Product Declarations (EPDs), but rather they allows initial conservative embodied carbon estimations for luminaires and lighting equipment to be made while waiting for EPDs to become available.
• Learn more sustainable lighting at Circular Lighting Live 2026, Recolight’s flagship conference and exhibition, which takes place on Thursday 8 October 2026 at the Minster Building in the City of London. Free to specifiers, Circular Lighting Live 2025 will feature leading experts, specifiers and policy makers who will share their insights into forthcoming standards and legislation, emerging technologies and new business models. More info: www.circularlighting.live
