Development of Technical Requirements for the DLC Solid-State Lighting QPL is an ongoing process involving input from Members, stakeholders, and our Technical Committee. The DLC strives to be responsive to the constantly-evolving SSL market and ensure that updates serve the needs and interests of both our Member utilities and our many industry stakeholders equally.
Please see below for an archive of past versions of the DLC Solid-State Lighting Technical Requirements.
- Version 4.4 (Effective October 18, 2018)
- Version 4.3 (Effective March 26, 2018)
- Version 4.2 (Released April 28, 2017)
- Version 4.1 (Released November 1, 2016)
- Version 4.0 (Released June 1, 2016)
- Version 3.1 (Released November 20, 2015)
- Version 3.0 (Released June 23, 2015)
- Version 2.1 (Released July 18, 2014)
- Version 2.0 (Released April 5, 2013)
- Version 1.7 (Released November 12, 2012)
- Version 1.6 (Released July 22, 2011)
- Version 1.5 (Released September 28, 2010)