Design Lights Consortium

The DesignLights Consortium (DLC) is a non-profit organization that promotes high-quality, energy-efficient lighting solutions for the commercial and industrial sectors. It is best known for maintaining the Qualified Products List (QPL), which serves as the industry standard for utility companies to determine eligibility for energy efficiency rebates. The DLC establishes rigorous technical specifications for solid-state lighting, networked lighting controls, and horticultural lighting systems. While primarily an energy efficiency organization, the DLC intersects with the life sciences through its standards for controlled environment agriculture and its research into the effects of light on human health and circadian rhythms. By setting these benchmarks, the DLC ensures that lighting technologies meet high performance standards while contributing to global sustainability goals.