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.

Requirements for SSL Product Images

Requirements for Submitting SSL Product Images

The DLC accepts and displays product images on the Solid-State Lighting QPL (SSL QPL) to allow energy efficiency program staff to cross-reference product specification sheets with QPL listings more easily. Image submission is not required for qualification. This resource details the DLC's requirements and style guidelines for SSL product images.

Cover page of Future-Proofing Energy Efficiency with NLCs

Future-Proofing Energy Efficiency with Networked Lighting Controls

This is a summary of the potential study commissioned by the DLC titled "Economic Potential of Networked Lighting Controls in Commercial Buildings: Tapping the Added Value of HVAC Connections."

Guidance for Using Allowances

This resource provides examples of the testing required to qualify products to the SSL QPL using efficacy allowances, and explains how those allowances may affect the product’s QPL listing.

Upcoming Events & Webinars

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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
Before using the DLC Program Logo, please review the documents below for instructions on proper use.