Lighting for the future.
Thanks to the participation of our consortium, the DLC’s LED lighting program is home to the largest and most influential list of high-performing LED luminaires and commercial lighting products in the world. We work in tandem with energy efficiency programs to improve both the energy savings potential and quality of light in the built environment. The SSL (LED) Qualified Products List improves both consumer confidence and sustainability of the LED lighting market as a whole through well-researched criteria for efficiency and quality created by our expert team and with input from our stakeholders. Our rigorous vetting and review process to qualify for listing creates trust.
70%
increase in average efficacy of qualified LED products since beginning the program in 2011
SSL Technical Requirements
SSL Technical Requirements V5.1 is the currently active DLC Technical Requirements for commercial and industrial LED lighting products. For more guidance on submitting products under SSL V5.1, see the V5.0 & V5.1 Manufacturer and Industry Guidance. V5.1 contains new quality of light requirements, including spectral quality and glare, and new controllability requirements.
| Version | Status | Effective Date | Update By | Delist Date | Documentation |
|---|---|---|---|---|---|
| Released for Comment | -- | -- | -- | Download PDF | |
| ACTIVE | Jul 1, 2020 | Aug 14, 2026 | Oct 1, 2026 | Download PDF | |
| DELISTED | Feb 18, 2020 | Jan 31, 2021 | Jun 30, 2022 | Download PDF | |
| DELISTED | Oct 18, 2018 | Nov 15, 2020 | Feb 28, 2021 | Download PDF |
SSL V6.0 and LUNA V2.0 Draft 1
Solid-State Lighting (SSL) Technical Requirements Version 6.0 (V6.0) is designed to improve the efficacy, quality, and controllability of DesignLights Consortium (DLC) listed high-performance commercial lighting products by establishing new and updated performance requirements and reporting criteria for commercial and industrial lighting.
The DLC is combining SSL V6.0 and LUNA V2.0 Technical Requirements into one publication with matching timelines and more closely connect LUNA V2.0 with SSL V6.0 to better support manufacturers seeking to list outdoor products to LUNA.
Minimum efficacy increases are proposed for all DLC qualified product types, resulting in an expected average increase in threshold efficacy of 17%. This increase is representative of both of improved product performance across commercial and industrial products and an indication of increasing efficacy trends since the DLC’s last efficacy increase in 2020 with SSL V5.0.
Quality of light encompasses the characteristics of lighting that include spectrum, distribution, lumen maintenance, and color maintenance, as well as application considerations like uniformity, controllability, discomfort from glare, light trespass, and light pollution. SSL V6.0 includes new listing pathways for non-white light (NWL) LED products, such as 1800K, 2000K, and amber LED products, to be listed in V6.0 with technology-specific requirements and reporting. Finally, standardized color maintenance reporting per ANSI/IES TM-35-19 is also being proposed as a step toward transitioning away from the custom color maintenance requirements introduced in V5.1
Controllability improvements include expanded lighting controllability requirements and reporting in SSL V6.0 that support additional energy savings while promoting better lighting control for people living and working in the built environment.
LUNA promotes rigorous performance criteria for specific categories of outdoor lighting so that lighting decision makers can be confident that their selections save energy AND follow best practices for nighttime lighting. LUNA V2.0 simplifies controls reporting by using SSL V6.0’s controllability requirements instead of its own specific controls requirements. The DLC is proposing that Non White Light (NWL) outdoor products must meet both SSL V6.0 and LUNA V2.0 requirements to be listed. This includes three new Turtle Lighting Primary Use Designations (PUDs).
To better support test planning and a clearer understanding of the DLC’s policy requirements, this publication will also include all auxiliary technical requirement policies that were previously standalone documents on the DLC website.
View and Download SSL V6.0 and LUNA V2.0 here.
© 2025 DesignLights Consortium. The DesignLights Consortium is a project of Efficiency Forward, Inc., a non-profit 501(c)3 organization. Privacy Policy Terms of Use