Please note that due to the holidays, DLC application processing will not occur between December 23 - 25, 2019. Product applications submitted between December 26, 2019 - January 3, 2020 may have additional processing and review time added due to limited personnel during the holiday season.

Horticultural Lighting

Horticultural Lighting

Horticultural Lighting Program and Qualified Products List

The DLC’s Horticultural Lighting Program is a suite of tools and resources to enable widespread adoption of energy-saving LED technology in the horticultural lighting sector. Working in partnership with utilities, energy efficiency programs, and the lighting industry, the DLC will build, distribute, and update these tools as this sector continues its rapid evolution.

  • Technical Requirements

    Technical Requirements


    Understand the specific technical performance requirements to qualify a product, including test procedures and summary reports. Please review these questions carefully before submitting, and email any questions to horticulture@designlights.org.

  • Horticultural Lighting Qualified Products List

    Horticultural Lighting Qualified Products List


    A QPL to find, understand, and compare the performance of LED-using horticultural lighting fixtures that may be eligible for utility incentives and rebates.

  • Horticultural Lighting Resources

    Horticultural Lighting Resources


    Supplemental guides for topics of interest in horticultural lighting. These guides introduce and summarize topics, explain how they relate to the DLC's requirements, and to point the way to groups who are leading the research.

  • Horticultural Lighting FAQs

    Horticultural Lighting FAQs


    This list of Frequently Asked Questions related to the DLC's Horticultural Fixture Program will be updated continually for the benefit of all QPL and program users.