The Society of Light and Lighting (SLL) welcomes all who are interested in any aspect of light, lighting, and its applications.
Building on over a century of history, the Society was originally founded as the Illuminating Engineering Society in 1909, later becoming a division of the Chartered Institute of Building Services Engineers (CIBSE). The SLL recognises the expertise of the lighting community in tackling the challenges which face us all, considering the climate emergency, global political uncertainty, rapid technological change, significant societal shifts, and skills shortages.
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Joining SLL
The Society offers grades of membership designed to recognise members’ knowledge and expertise.
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Publications and Guidance
SLL members can download PDF versions of SLL publications for free as part of their CIBSE membership
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Lighting Research & Technology
Lighting Research & Technology (LR&T) is CIBSE's international journal containing refereed papers on all aspects of lighting research and technology.
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Light Lines Newsletter
Light Lines is the Society’s bi-monthly magazine. It includes carefully curated content on an array of different lighting topics. Read the latest issue online.
SLL Light Lines MagazineFuture SLL Events
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- Group SLL
- Date June 7th 2023, 13:00 - 14:00
- Location Online
Lighting
- Group SLL
- Date June 28th 2023, 18:00 - 20:00
- Location 19 hythe road
- Group SLL
- Date June 7th 2023, 13:00 - 14:00
- Location Online
Latest News
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Celebrating the Art and Science of Light, SLL welcome Helen Loomes as new President
Bridging the gap between the science and art of lighting, the Society of Light and Lighting (SLL) welcomes Helen Loomes as new president. Helen delivered her presidential address and laid out plans for the year ahead at yesterdays, SLL AGM, held at the RIBA on 24 May 2023.
SLL & CIBSE launch Light2Perform, showcasing the lighting professionals and technology at the heart of the net zero agenda
The first Light2Perform will take place as part of this year’s CIBSE Build2Perform Live, CIBSE’s flagship event, on 5 - 6 December 2023 at Excel, London.
#SLLOurLight campaign 2023
The Society of Light and Lighting (SLL) invites you to celebrate the art and science of light by participating in this year's #SLLOurLight campaign. The theme this year is reuse, recycle and repurpose. The campaign will launch on Tuesday 2 May 2023 and run for two weeks, with the deadline for entries on the International Day of Light 2023 (Thursday 16 May).
Lighting for Offices
The Society of Light and Lighting (SLL) has published a new edition of Lighting Guide 7: Lighting for Offices.
The office environment has changed considerably in recent years. Tablet and smartphone use continue to free people from their desks and present challenges to lighting designers. It is likely that people will spend some time in offices but that their working week may see them work from various locations, including their homes. As such, this revision of Lighting Guide 7 now includes advice on lighting for a home office.
The SLL Sponsors
International Day of Light
International Day of Light