Short description: The Philips HF3500/01 Wake-up Light is an innovative device that utilizes natural light to help you wake up in a calm and natural manner. This device simulates a sunrise by gradually increasing light intensity over a 30-minute period to help you transition from sleep to wakefulness. It provides the option to adjust the light intensity and choose from various sound options to give you a pleasant and peaceful waking experience. With this feature, you can experience an energizing and refreshing start to your day, easing the transition from sleep to full wakefulness.