Due to a high volume of applications, initial and comprehensive review timeframes are currently extended by 10 days each for SSL, LUNA, and Hort applications. Click here for more details about SSL application review timeframes, and here for more details about Hort review timeframes. Thank you for your understanding!

Media Center: About the DLC

The DLC is a non-profit organization improving energy efficiency, lighting quality, and the human experience in the built environment. We collaborate with utilities, energy efficiency programs, manufacturers, lighting designers, building owners, and government entities to create rigorous criteria for lighting performance that keeps up with the pace of technology. Together, we’re creating solutions for a better future with better lighting.

Our mission is to achieve energy optimization by enabling controllability with a focus on quality, people, and the environment. The DLC’s many initiatives include three Qualified Products Lists for energy efficient lighting technology: Solid-State Lighting, Networked Lighting Controls (NLC), and Horticultural Lighting. We also offer an extensive library of resources, research, and tools that help accelerate the adoption of energy efficient, quality lighting solutions.

LUNA Additional Reading

Learn more about the effects of light on nighttime environments.

External Horticultural Tools and Resources

These resources are supplemental materials for particular areas of interest in horticultural lighting. Although these external resources and tools were not created by the DLC, they may be helpful for those in CEA industry.

Responsible Lighting at Night: Bridging the Inequality Gap

Webinar: Responsible Lighting at Night – Bridging the Inequality Gap

This webinar examines the societal and professional misconceptions, and safety and health implications of poor quality of light at night on marginalized communities. Panelists discuss how investments in well designed, responsible light can meet communities' needs.

Upcoming Events & Webinars

No Upcoming Event Found

Logo Usage & Guidelines


The DLC Program Logo is intended for use by:
  • DLC Members
    To indicate membership in the DLC Program on DLC Member webpages.
  • Lighting Testing Laboratories
    To indicate available product testing services necessary for manufacturers to submit an application to the DLC QPL. Laboratories must meet the DLC accreditation requirement to display the logo. The DLC Logos and Trademarks may not be displayed in test reports or be used in a manner that implies the DLC endorsement of a laboratory or its services.
  • Other
    Addition use of the DLC Program Logo will be assessed on a case-by-case basis. Please contact info@designlights.org.
Before using the DLC Program Logo, please review the documents below for instructions on proper use.