Since the show name implies, True Dark Daylights are designed for daytime use, and they function to: filter from the harshest blue light wavelengths emitted by artificial lighting sources, like LEDs, fluorescents, telephones, tablet computers, and computers While a few blue lights throughout the daytime are right for you (to help you remain awake and awake ), particular wavelengths could disrupt your circadian rhythm. Whether you are at work, the gym, the supermarket, or at an airport, crap lighting impacts your power and performance. True Dark Daylights can allow you to discover the appropriate equilibrium of blue light exposure from artificial light sources so you can sustain your energy levels and maintain your sleep/wake cycle track.