Energy + Environment, Products + Technology

The Most Sustainable Luminaire In The UK Will Surprise You

The Most Sustainable Luminaire In The UK Will Surprise You


A street light has just set a new record for the highest TM66 product circularity score, in the UK. It is the Oaken street light, manufacturered by Thorlux Road and Tunnel (TRT) Lighting, in the UK, with a TM66 score of 3.1. The CISBE TM66 circularity standard is designed to measure the carbon footprint of a luminaire from construction to end-of-life disposal.

The Oaken is designed for disassembly, recyclability, and repurposing at the end of its life. Some of the key sustainability features of the Oaken include:

  • The European oak housing is made from kiln-dried planks of laminate oak from PEFC certified forests. The wood has been 650oC and 850oC hot-wire tested. TRT says the wood housing has a 20 year life, even under extreme weather conditions. The wooden housing reduces embodied carbon by 97% compared to a standard aluminum cast alloy housing.
  • 100% post-industrial recycled polycarbonate optic cover (IP66).
  • LED module efficacy of 191.7 lumens per watt. Driver efficiency up to 92%, with 2 DC channels. The two channels allow either of two luminaire power options to be selected during manufacturing. A NFC remote control can scan a QR code to select the preferred wattage. The wooden housing allows the NFC remote to radio the driver without opening the luminaire.
  • The gear tray and mounting post are both made from >90% recycled aluminium sheets.
  • Highly efficient PMMA & PC lens options

Overall, the luminaire reduces embodied carbon by 50% compared to a standard street light. More information can be found here.



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David Shiller
David Shiller is the Publisher of LightNOW, and President of Lighting Solution Development, a North American consulting firm providing business development services to advanced lighting manufacturers. The ALA awarded David the Pillar of the Industry Award. David has co-chaired ALA’s Engineering Committee since 2010. David established MaxLite’s OEM component sales into a multi-million dollar division. He invented GU24 lamps while leading ENERGY STAR lighting programs for the US EPA. David has been published in leading lighting publications, including LD+A, enLIGHTenment Magazine, LEDs Magazine, and more.


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