Leslie North, along with Steven Lockley of Harvard University and John Hwang of Planled, presented "Tuning the Spectrum: Light, Health, and the Pursuit of Happiness", which was moderated by Michael Royer of Pacific Northwest National Laboratory.
Full description: LED light sources have reinvented lighting as we know it, enabling manufacturers to customize their products and tune their color recipes to achieve benefits beyond simply lighting a space. An increasing number of manufacturers are offering color-changing LED products, with the promise of health and behavioral benefits. But how much do we know about these products and the validity of these claims? A researcher, a specifier, and a manufacturer offer insights on value-added product benefits, what research is still needed, and the process and challenges for specifying health-focused lighting systems.