Technical Requirements V5.1
Effective on July 1, 2020, Solid-State Lighting Technical Requirements V5.1 begins to build a foundation for quality of light requirements, including spectral quality and glare requirements, and additional controllability requirements.
Product Eligibility/Primary Use Designations
The DLC qualifies commercial LED luminaires, retrofit kits, linear replacement lamps, mogul (E39/E40) screw-base replacements for HID lamps, and four pin-base replacement lamps for CFLs on the DLC QPL. Click below to see whether the DLC qualifies your specific product type.
DLC Premium Requirements
DLC Premium is a higher-performance classification for luminaires and retrofit kits. Products submitted to the DLC Premium classification must meet higher efficacy and lumen maintenance requirements and must also provide a driver ISTMT and information about integral controls.
Testing Lab Requirements
DLC applications require that product testing be conducted at an accredited laboratory appropriate for the performance being evaluated. These tests may include in situ measurement tests (ISTMT), LM-79, LM-80, LM-84, or compatibility tests for four pin-base replacement lamps for CFLs.
Past Technical Requirements
Development of Technical Requirements for the DLC Solid-State Lighting QPL is an ongoing process involving input from Members, stakeholders, and our Technical Committee. See below for an archive of past versions of the DLC Solid-State Lighting Technical Requirements.