DLC Releases Final SSL V6.0 and LUNA V2.0 Requirements

The DesignLights Consortium (DLC) released the DLC Technical Requirements for LED Lighting: SSL V6.0 and LUNA V2.0. Solid-State Lighting is DLC’s LED program, while LUNA (Light Usage for Night Applications) is DLC’s dark sky program. These updated requirements apply to both indoor and outdoor non-residential applications.

The DLC Technical Requirements for LED Lighting: SSL V6.0 and LUNA V2.0, introduces a combined set of technical requirements and policies, streamlining what were previously multiple separate policy documents. The DLC will begin accepting applications to list products on the Qualified Products List (QPL) for both SSL V6.0 and LUNA V2.0 on January 5, 2026, and products should be updated to the new requirements by December 15, 2026 to avoid being delisted. Each policy was updated to reflect the feedback received from over 50 organizations that provided nearly 1,500 individual comments.

The goals of SSL V6.0 & LUNA V2.0 focus on improvements to performance emphasizing efficacy, controllability, and high quality of light for indoor and outdoor applications, as aligned with the DLC mission.

The Technical Requirements for LED lighting also advance the goals of the DLC Premium classification, which have higher efficacy thresholds and requirements for luminaire controllability that allow QPL users to identify light fixtures and retrofit kits that maximize energy savings and product life while maintaining quality of light.

Overall, the new technical requirements for LED lighting maintain an average increased efficacy threshold across all DLC qualified product types of 14 percent (with some product efficacy increases as high as 30 percent). At the same time, SSL V6.0 includes efficacy allowances for products that meet higher quality of light thresholds in terms of features such color rendition and glare control.

Modern LED luminaires enable deeper integration with building systems for maximum energy savings and flexible energy use. As utilities provide more electricity to meet demand, luminaires with advanced controls are becoming more important in helping manage loads. With higher efficacy thresholds and enhanced controllability, these Premium classified LED products facilitate increased energy savings opportunities and can extend the reach of efficiency programs for more savings and benefits to commercial customers. These combined features deliver high-quality lighting solutions that support sustainability goals, enhance visual performance, and lower total cost of ownership.

View SSL V6.0 and LUNA V2.0 Technical Requirements

For additional details on the benefits of these technical requirements, see DLC’s blog series:

The DLC’s New LED Technical Requirements – Designed to Meet this Moment

You Spoke, We Listened: How Your Feedback Shaped DLC SSL V6.0 and LUNA V2.0

Introducing the DLC Technical Requirements for LED Lighting: SSL V6.0 and LUNA V2.0

All images courtesy of www.designlights.org .

David Shiller

David Shiller is the Publisher of LightNOW, and President of Lighting Solution Development, a North American consulting firm providing business development services to advanced lighting manufacturers. The ALA awarded David the Pillar of the Industry Award. David has co-chaired ALA’s Engineering Committee since 2010. David established MaxLite’s OEM component sales into a multi-million dollar division. He invented GU24 lamps while leading ENERGY STAR lighting programs for the US EPA. David has been published in leading lighting publications, including LD+A, enLIGHTenment Magazine, LEDs Magazine, and more.

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