Lumie Bodyclock is the original wake-up light, also called a dawn simulator. It wakes you gradually with increasing natural light. This is a signal for your body to ease production of sleep hormones (e.g. melatonin) and increase those that help you get up and go (e.g. cortisol). Wake-up lights help to keep your sleep cycle on track, boosting mood, energy and productivity levels all day. Features: 15, 20, 30, 45, 60 or 90 minute sunrise to wake naturally 15, 20, 30, 45, 60 or 90 minute sunset to wind down for bed FM radio with digital tuning Dawn chorus or rooster call sounds to enhance your sunrise White noise setting to mask sounds that might keep you awake Wave sounds to lull you to sleep Sunray effect Dimmable lighting for use as a bedside light Nightlight feature Snooze feature Security option to turn on the light randomly while you’re away Back-ups: optional alarm beep, power failure back-up Specifications: Sunrise/sunset duration: 15, 20, 30, 45, 60 or 90 minutes FM radio radio with digital tuning Optional beep alarm Sounds for sleep and wake-up Dimmable bedside lighting Snooze feature Fully dimmable display Nightlight feature Security light option Sunray effect Power failure back-up White noise Bulb(s): 42 W SES halogen Size (H x W x D): 18 x 22 x 13 cm 3-year warranty Class I medical device Weight: 1.00 kg Please Note: Supplied with a UK three pin plug only.