
Estimated reading time: 4 minutes
Key Takeaways
- The updated SLL Lighting Guide LG14 provides a logical approach for designing and implementing lighting control systems.
- This second edition includes guidance for internal and external electric lighting but excludes specific controls like theatre and advertising.
- Market drivers for lighting controls now include advancing technology, energy efficiency legislation, and increased energy costs.
- CIBSE and SLL members can access a digital copy of the guide for free, while others can purchase it for £40.
- The guide aims to help designers specify compatible and effective lighting control products for their projects.
An updated revision of SLL Lighting Guide LG14: Control of Electric Lighting has been published by The Society of Light and Lighting (SLL). The SLL is a division of the Chartered Institution of Building Services Engineers (CIBSE).
Originally published in 2016, this is the second edition of LG14.
The SLL describes the updated guidance as setting out a “logical approach for the professional designer to consider the consultation, design, specification, commissioning and handover of a lighting installation incorporating controls”.
This second edition of LG14 has been produced and updated to inform what is meant by lighting controls for electric light relative to project specification and design in the 21st century.
The SLL says its revised and updated guide covers internal and external electric lighting control but does not cover solar blind and shutter control, theatre or advertising electric lighting control.
As controls-based technologies are moving ‘at pace’ and advancing quickly, LG14 acknowledges the existence of these new technologies and future editions will incorporate design considerations as these technologies become proven and commonplace.

Market drivers for controls
Luminaire technology, energy efficiency legislation and rising energy costs are the most common drivers for the incorporation of lighting controls into a project. This means that lighting controls are increasingly becoming essential rather than an ‘optional extra/nice to have’ project consideration.
In its launch statement, the SLL says:
“It is an important consideration that the project stakeholders and, in particular, the lighting designer are aware of the current lighting control technologies available to meet the performance objectives of a project. This approach will enable the specification of lighting control products and services that are fit for purpose and compatible with the selected luminaires and lighting design.”
How to get hold of a copy of LG14
Members of CIBSE and the SLL have unlimited online access to guides via the CIBSE Knowledge Portal. Alternatively, a copy can be purchased (for £40.00) from CIBSE: LG14: Control of Electric Lighting
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Frequently Asked Questions
The second edition of LG14, published by the Society of Light and Lighting (SLL), sets out a logical approach for professional designers covering the consultation, design, specification, commissioning, and handover of lighting installations with controls. It defines what lighting controls mean for 21st-century projects, covering internal and external electric lighting but excluding theatre, advertising, and solar blind controls.
Advancing luminaire technology, energy efficiency legislation, and rising energy costs are making lighting controls an essential project consideration rather than an optional extra. The guide helps stakeholders and designers understand available control technologies so they can specify products that are fit for purpose and compatible with the chosen luminaires.
Members of CIBSE and the SLL can enjoy unlimited online access to the guide through the CIBSE Knowledge Portal. Alternatively, non-members can purchase a copy of LG14: Control of Electric Lighting directly from CIBSE for £40.00.











