The Good Light Group is a non-profit organization operating globally. The main objective of the Good Light Group is to stimulate the use of #goodlight indoors. This goal will be reached by communicating the benefits of #goodlight for people, by stimulating collaborations and by promoting knowledge developments on the topic of #goodlight Our mission for 2025 is that one million people worldwide know about the beneficial effects of Good Light on the body and brain. These are a better quality sleep, better concentration and alertness during daytime and a lifted mood. We also want to accomplish that hundred thousand people worldwide live, work and learn in buildings with Good Light.