DLC News - The Solid-State Lighting QPL has fully transitioned to V5.1
As of July 1, 2022, the DLC has completed the transition to the newest version of the Solid-State Lighting (SSL) Technical Requirements (V5.1) – a policy designed to increase efficacy and improve quality of light and controllability of qualified fixtures and lamps. Any products that have not been updated to meet V5.1 requirements have been removed from the Qualified Products List (QPL).
DLC News-Changes Ahead: Transition to SSL V5.1 in 2022
The DLC’s Solid State Lighting Technical Requirements Version 5.1 (SSL V5.1) aims to boost the lighting quality of products on the DLC’s Qualified Products List (QPL). Performance data on attributes such as color and discomfort glare based on light distribution are reported and available for QPL users to better distinguish characteristics needed for various installations.