Function Setting Daylight White Light: Brightness 00-20, Red 0.3W*1, Amber 0.5W*3, and Warm White 0.3W*8, 200Lux. Colorful Lights: 6 color lights (automatic/manual gradient), 0.3W*9 RGB, 150Lux. Wake-up Light Alarm Before the preset alarm sounds, the light turns on in advance, and the maximum brightness increases gradually. With Night Light In the preset sleep mode, the light automatically turns off, and the maximum brightness decreases. Alarm Clock Alarms: 2 groups Alarm Volume: 00-16 Alarm Sound: 7 groups of chord sounds + 1 group of radio Alarm Duration: 15 minutes Alarm Mode: Light + Sound/Radio Snooze Interval: 9 minutes Maximum Repeats: 5 times Sleep Aid Sleep Sounds: 3 sets of natural sounds + 1 set of radio Falling Asleep Method: Light + Sound / Radio Falling Asleep Time: 10-120 minutes Display 12/24 Hour Clock Three Levels of Display Brightness FM Radio FM Volume: 00-16 FM Storage Capacity: Max 60 stations Battery: Button cell, for maintaining time/setting memory function Voltage: 100 ~ 240V Adapter: 5V/2A FM Frequency: 87.0 ~ 108 MHz