At the Lighting for Health and Wellbeing Conference, Dr. Martin Moore-Ede of Circadian Light shares with Maury Wright the method for delivering more controllable white light via circadian LED lights that regulate the dosage and timing of bio-active blue light to increase human health and productivity throughout the 24/7 day-night cycle. The customized spectrum delivers high levels of bioactive blue energy during daytime to stimulate natural biorhythms, with disruptive levels of blue removed and compensated with a 418-nm peak violet die to protect against circadian disruption.