Circular Lighting Report

TRT X-Range achieves ‘excellent’ TM66

TRT Lighting X-Range

TRT Lighting’s tunnel luminaire X-Range has been rated with an ‘excellent circularity’ after it achieved a TM66 score of 2.5.

The light – whose rating is verified by the Lighting Industry Association’s assurance scheme – is designed for arduous conditions while still maintaining high luminous efficacy through its toughened glass cover.

The Redditch-based manufacturer says its achievement reflects its commitment to creating products that not only meet but exceed industry standards, prioritising sustainability and circularity in the design and production of the X-Range luminaire.

TM66 is a comprehensive assessment that evaluates the circular economy performance of lighting products. It assesses factors such as recyclability, reusability, and overall sustainability, guiding consumers towards environmentally responsible choices.

Published in October 2021, TM66 is a Technical Memorandum which helps with the assessment of how ‘circular’ luminaires are. It was created by a team of volunteers for the Chartered Institution of Building Services Engineers (CIBSE) and the Society of Light and Lighting (SLL).

The CEAM-Make tool is the supply-side tool for manufacturers to complete as it requires in-depth knowledge about products and manufacture. It’s an online/Excel based tool comprised of 66 questions under four tabs: product design, manufacturing, materials and supporting ecosystem.

Each question is rated and then scored between 1 and 4, where 1 is status quo and 4 is outstanding.

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.
CEAM-Design –  the demand-side tool – is faster to complete, containing only 20 questions relating to the same questions in CEAM-Make. It is aimed at lighting designers or specifiers to enable them to quickly understand what level of Circular performance a product or manufacturer has. Again, at the end of the assessment a total is generated.
The TM66 metric won both Build Back Better Platinum and Gold ratings in 2021.

• Diary date: Circular Lighting Live 2024, Recolight’s flagship conference and exhibition, takes place on Wednesday 9 October 2024 at the Royal College of Physicians in London. Free to specifiers, Circular Lighting Live 2024 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:

Ray Molony

Recolight Report is an independent guide to the latest developments in sustainable and circular lighting. Learn about the people, products, projects and processes that are shaping our industry’s low carbon future. Plus: explainers on the latest innovations, opinion from thought leaders and video interviews with leading disruptors. Edited by lighting expert, editor and industry figure Ray Molony.