Transition to DesignLights Consortium’s Solid-State Lighting V5.1 Technical Requirements is Underway

LDS 7 CS DLC 400

April 12, 2022

With the grace period for updating LED products to meet its latest solid-state lighting (SSL) technical requirements set to expire on June 30, the DesignLights Consortium issued a reminder that products not updated to its Version 5.1 SSL Technical Requirements will be delisted from the DLC SSL Qualified Products List (QPL) as of July 1, and may therefore become ineligible for energy efficiency incentives.  

Manufacturers must submit applications to update their products to Version 5.1 of the SSL Technical Requirements by April 15 to avoid delisting of non-V5.1 compliant products from the QPL – a resource utilized by more than 200 energy efficiency incentive programs across the US and Canada. The DLC’s V5.1 SSL Technical Requirements took effect July 1, 2021, with a one-year grace period to give manufacturers time to update products and maintain their QPL listing. For distributors, manufacturers’ representatives, energy services companies and others, now is the time to evaluate inventory to ensure that the commercial lighting products they stock and purchase are aligned with this new policy and will remain eligible for rebates.

“The latest technical requirements are aimed at improving the lighting quality and controllability of QPL-listed fixtures,” DLC Executive Director and CEO Christina Halfpenny said. “Many commercial lighting energy efficiency programs recognize the importance of features such as dimmability and integral controls and rely on SSL V5.1 compliance for incentive programs.”

The new policy requires manufacturers to report performance data on attributes such as color and discomfort glare based on light distribution, enabling QPL users to better distinguish characteristics needed for various purposes and installations. V5.1 also requires disclosure of integrated controls and ensures that most QPL-listed products can be dimmed, a critical component for capturing savings beyond those possible with LEDs alone and for integrating lighting with other building systems. Since LED luminaires installed today may last for a decade or more, strengthening controllability requirements locks in potential energy and cost savings for years to come. Not doing so can leave these savings stranded.

Introducing rigorous, attainable criteria for quality of light characteristics supports the DLC’s intention to keep pace with technological advances to create solutions for a better future through better lighting. The DLC provided a grace period for manufacturers to update their products to keep them on the SSL QPL. After June 30, however, the DLC will delist any products not updated to comply with V5.1.

More information on transition to the SSL Technical Requirements, including industry guidance, is available HERE

Related Articles


Changing Scene

  • April 1, 2026 - GVA Lighting Promotes Oksana Kostylova to Director of Human Resources

    GVA Lighting Promotes Oksana Kostylova to Director of Human Resources

    GVA Lighting is pleased to announce the promotion of Oksana Kostylova to Director of Human Resources. Oksana joined GVA Lighting in June 2022 as an HR Generalist and was promoted to HR Manager later that year in recognition of her impact and leadership. Since joining GVA, she has strengthened core HR foundations, enhanced key people… Read More…

  • March 31, 2026 - SATCO Celebrates 60 Years of Excellence in Lighting, NUVO Marks 20 Years of Design Innovation 2

    SATCO Celebrates 60 Years of Excellence in Lighting, NUVO Marks 20 Years of Design Innovation

    SATCO proudly announces the celebration of its 60th anniversary, marking six decades of sustained growth, innovation, and service excellence. Concurrently, NUVO, a prominent lighting brand under the SATCO umbrella, celebrates its 20th anniversary, highlighting two decades of cutting-edge design and creative solutions for residential and commercial spaces. Founded in 1966, SATCO has consistently demonstrated a… Read More…


Design

  • Omnify: 7 Common Light Panel Mistakes (And How to Fix Them)

    Omnify: 7 Common Light Panel Mistakes (And How to Fix Them)

    You’ve invested in premium LED light guide panels for your retail display or commercial project. The specs looked perfect. The samples were gorgeous. But now? Something’s off. Maybe the lighting is uneven, or panels are starting to fail way before they should. Here’s the thing, most LED light guide panel problems aren’t manufacturing defects. They’re… Read More…

  • Legrand: The Benefits of DMX Lighting in Modern Commercial Spaces 

    Legrand: The Benefits of DMX Lighting in Modern Commercial Spaces 

    DMX lighting is a powerful control protocol originally developed for theaters and entertainment venues, but its reach has expanded far beyond the stage. Today, DMX is increasingly used in commercial, educational, healthcare, and architectural environments to create dynamic, color-rich, and adaptable lighting experiences. Where traditional lighting systems focus primarily on on/off and dimming control, DMX… Read More…


New Products

  • Magic Lite: 5CCT Gimbal Down Light (90° Tilt)

    Magic Lite: 5CCT Gimbal Down Light (90° Tilt)

    Magic Lite’s 5CCT Gimbal Down Light is a versatile solution to direct light into your life! An ideal directional lighting option for remodel and new construction, 5CCT LED Gimbal Down Lights are a versatile and affordable choice for countless applications. Read More…

  • Dals: New 12W 24V Compact Hardwire Driver – PLD2412DIM

    Dals: New 12W 24V Compact Hardwire Driver – PLD2412DIM

    Enjoy smooth, precise dimming with Dals Compact 24V Drivers. These new devices are 33% lighter and smaller than their DRXXX models, providing consistent performance and effortless adjustment of light output to match the time of day and the specific needs of your 24V low-voltage fixtures. Read More…