Start your mornings in the right way with the Philips HF3520 Wake-Up Light Alarm Clock. Through colored sunrise simulation, this device wakes you up in a pleasant and more natural way. Featuring 20 brightness settings, the Wake-Up Light gradually increases for up to four minutes before your alarm goes off. Simply choose the time you wish to wake up and allow the gentle sunrise to wake you up gently. The light comes on very gently to begin with and gradually gets brighter and brighter until your alarm time. Additionally, you have the option of choosing one of five nature-inspired sounds to accompany the light. The light-responsive dimming feature also makes it easier for you to fall into a restful sleep. Using the Wake-Up Light Alarm Clock, you can wake up in a better mood and with more energy each and every morning.