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The Society offers different grades of membership, depending on lighting knowledge and experience. 

Existing members of the Society may also wish to upgrade their membership, ensuring that they are receiving the professional recognition that they deserve. Find out more about upgrading your SLL Membership.

All members receive the benefits of membership of CIBSE plus:

​Members of the Institution, in all grades, are required to maintain the highest standards of professional conduct. All members must order their conduct in accordance with the CIBSE Code of Conduct.