Human beings need light.  On a basic level, natural light tells us when it’s time to wake up and go to sleep.  On the other hand, manmade light sources are responsible for enabling a variety of different activities when natural light is simply not available.  As a result, we are exposed to light (of all different kinds) every day and that light has an effect on our overall wellbeing and health.  Research indicates that LED lighting can provide a variety of health benefits.  H