An innovative concept for lighting public spaces makes light using sustainable LEDs. The light spectrum corresponds optimally to the human eye sensitivity at dusk and night. As a consequence, the lighting needs less energy than conventional lamps to provide better visibility. In September 2012 Innolumis produced their first Danish street lighting project in the city of Esbjerg. The luminaires have 80.000 hours / 20 years warranty. The secret of this long lifetime is in the concept and technology.