Lumie Bodyclock Spark 100 Wake-up Light Lumie Bodyclock Spark 100 wakes you gradually with light that mimics a real sunrise. The brightening light is a signal for your body to reduce the production of sleep hormones such as melatonin, whilst increasing the levels of hormones like cortisol that help you get up and go and so you’re brought naturally round from sleep. This provides a fantastic start to the day for sufferers of SAD (Seasonal Affective Disorder) and the winter blues, and helps anyone who is not naturally a morning person to feel brighter and more energetic first thing. From Lumie, Other features include a nightlight setting, light=sensitive display, and tap-control snooze. Light therapy specialists and inventors of the very first wake-up lights. Depth: 120 MM Height: 160 MM Width: 190 MM Power Type: Mains