Wake up naturally using a wake-up light and colored sunrise. Inspired by nature’s sunrise the Philips Wake-up light employs a unique combination of light therapy and sound to wake you in a more natural way. The color of the morning light changes from soft dawn reds through hot orange to bright yellowish light. Produced with Philips’ Clinical Sleep & Respironics understanding and 100+yrs of Lighting experience. Frequency is 50/60 Hz.