Raphael Baillot is R&D and innovation director of Sunna Design SA. He leads the overall R&D and innovation roadmap of Sunna Design focused on the development of LED-based solar street lights to bring sustainable solutions to the global market of rural electrification.Yannick Deshayes is Associate Professor at the University of Bordeaux, France. His research focuses on the physics of failure, from photonics materials to complex devices. He develops quantum theory to establish degradation laws on photonics devices for LED, laser and photonics applications..