Specification: Power Input:5v/1A;  Material:PC+ABS;  Bulit-in lithium battery:3600mAh;  Color temperature:2900-3100K;  Lifetime:20000 hours;  Dimensions:155*155*90mm;  Weight:410g;  Color:White;    Features: 1. Wake up with sunrise simulation: Automatic lighting controllers turn lights on 30 minutes before the alarm goes off. The intensity of the light increases gradually and reaches full intensity at the alarm time just like a natural dawn sunrise which assists you in getting up pleasantly and comfortably. In order to ensure the normal operation of the wake-up light function，please use it with charging by the USB cable.  2. Eye-care light&color changing: Lovely soft lighting with warm white glow is nice as a dim nightlight but also can bright enough for reading and craft work.With an Auto cycle of 256 RGB color combinations. It helps break up the monotony of having just one light color. Soothing when it circulates which can flick through or you can freeze it whichever color temps your mood perfect and interesting gift.  3. This light is designed to reduce SAD(Seasonal affective Disorder): Symptoms by simulating sunrise in order to help adjust the biological clock. It is also great if you have thick curtains blocking outside light and still need artificial light to wake you up   4. Sleep therapy sounds The 4 natural sound settings. The noise machines are not just great at blocking out extraneous noise, But also an idea for tinnitus sufferers, light-sleepers, night-shifts workers, infants & children, etc.  5. Fall asleep quickly with soothing light: The soothing light is designed to produce red light wavelengths which can raise the secretion of Melatonin for helping you fall asleep and stay asleep.    Package Included: 1x Alarm Clock;  1x USB Cable;  1x User Manual