We are changing the criterion 2.2 (Candela per lumen) for a criterion assessing the efficacy of the optic system (lumen led/lumen delivered). Please let us know your comments.
Lighting for Good Changed status to publish 23 June 2020
We are changing the criterion 2.2 (Candela per lumen) for a criterion assessing the efficacy of the optic system (lumen led/lumen delivered). Please let us know your comments.