Dosing
A common means of reporting dosing in the scientific studies is intensity, which is defined as power per unit area (mW / cm2), as well as energy which is defined as power multiplied by time (Units of Joules, J). The latest generation of the light box emits more than 1600mW on average (there is a small dependence on the battery voltage and red versus blue spectrum). This is determined by measuring the voltage and current flowing across the LEDs. The intensity is determined by dividing the power by the area of application, which is effectively the area of the lens which is measured at 13.75cm2. The intensity can be computed as 116 mW/cm2, the energy delivered in one minute per unit area can be computed as 7.0 Joules / cm2, or 96 Joules in total. One button press results in a two minute application, or 192 Joules of energy being delivered. The LEDs are 660nm red LEDs and 450nm blue LEDs, designed to provide very specific wavelengths as well as a significant energy density. Discontinue use if there are any side-effects that may or may not include skin irritation. Do not use near the eyes.
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