The Society of Light and Lighting (SLL) welcomes all who are interested in any aspect of light, lighting, and its applications.
With over 3300 members globally, the Society of Light and Lighting (SLL) is recognised as an authority on lighting and welcomes all who are interested in any aspect of the world of light, lighting, and its design or application. Lighting designers, consulting engineers, researchers, students, academics, manufacturers, sales staff and many more all contribute to and are members of the SLL.
Contact us
If you would like to contact SLL regarding membership, publications, or events, or you are interested in the opportunity of joining one of the SLL committees please email SLL.
About
Our people including Area Reps, Committees, Council, Executive Board and our History.
Find out more
Knowledge & Resources
Lighting Guides, Light Lines magazine, past Webinars, Fact Files and the Lighting Research & Technology (LR&T) Journal.
Find out more
Learning & Development
How to develop your career, available lighting courses and related training.
Find out moreLatest SLL News
View All
SLL Young Lighter Finalists 2026 announced
The SLL are delighted to announce the finalists for this year's Young Lighter.
SLL are supporting LiGHT 26
The SLL are delighted to be supporting LiGHT 26 at the Business Design Centre in Islington, London, on the 18th and 19th of November 2026.
Khorshid Meihami is the recipient of the Jean Heap Bursary 2026
Khorshid Meihami is the recipient of the Jean Heap Bursary 2026.
Upcoming SLL Events
View All
Energy, Sustainability, Climate & the Environment
Sustainability Unfiltered: A Sustainable Specification Series - Manchester
- Group Sustainability, SLL, North West, Yen North West
- Date September 24th 2026, 12:30 - 20:00
- Location Manchester
Energy, Sustainability, Climate & the Environment
- Group SLL, HCNE, HCNW, HCSE, HCSW, Yen London
- Date October 8th 2026, 08:00 - 18:30
- Location London
Lighting
- Group SLL
- Date October 15th 2026, 15:00 - 22:00
- Location Sidcup
Energy, Sustainability, Climate & the Environment
Sustainability Unfiltered: A Sustainable Specification Series - Manchester
- Group Sustainability, SLL, North West, Yen North West
- Date September 24th 2026, 12:30 - 20:00
- Location Manchester
Energy, Sustainability, Climate & the Environment
- Group SLL, HCNE, HCNW, HCSE, HCSW, Yen London
- Date October 8th 2026, 08:00 - 18:30
- Location London
Lighting
- Group SLL
- Date October 15th 2026, 15:00 - 22:00
- Location Sidcup