A street light from Spanish brand Carandini has achieved an ‘excellent’ score of 2.9 on the circularity metric TM66.
The Veka luminaire has, says the company, been designed in line with circularity principles and its high rating validates this.
Its robust construction is designed to ensure a long service life, while its modular design facilitates maintenance, component replacement and future upgrades. In addition, the company says careful material selection supports both responsible sourcing and efficient end-of-life processing.
The light is also certified by the International Dark Sky Association, which says the company complies with its approval programme to provide light that protects the environment and dark skies.
TM66, a ‘technical memorandum’, is a measure of the circular performance of luminaire and was created by Cibse’s Society of Light and Lighting.
The document won a prestigious Build Back Better Award on its publication on its publication in 2001 and was quickly adopted by the lighting industry.
Major lighting design practices and organisations are using the metric in their procurement and specification policies, and many manufacturers have rated their luminaires on the TM66 scale, which gives a number between 1 and 4 similar to a vehicle’s NCAP safety rating.
Manufacturers complete a questionnaire of 66 questions under four tabs – product design, manufacturing, materials and supporting ecosystem.
Each question is rated and then scored between 1-4, 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.
Another tool in the document is CEAM-Design, a demand-pull tool which contains 20 questions and is aimed at designers or specifiers to enable them to quickly understand what level of circular performance a not-yet-tested product has. Again, at the end of the assessment a total is generated.
• Learn about TM66 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
