Fig. 3From: Effect of quantity and intensity of pulsed light on human non-visual physiological responsesThree lighting conditions. Participants were exposed to three lighting conditions whose product was held constant. HS condition: high irradiance (30 kμW/cm2) and short pulse width (50 μs); MM condition: medium irradiance (15 μW/cm2) and medium pulse width (100 μs); LL condition: low irradiance (7.5 μW/cm2) and long pulse width (200 μs)Back to article page