Specifications Sunrise simulation: light rises from 10 percent to full brightness before the alarm time Sunset mode: gradual dimming for wind-down Two independent alarms: weekday, weekend, or everyday schedules 15 light colors, 20 brightness levels LED time display, 4 brightness levels, can be switched off FM radio, 76.0 to 108.0 MHz, auto scan, 16 volume levels Snooze: 8 to 15 minutes USB Type C power, 5V. Built-in USB port charges a phone. Adapter not included CR2032 backup battery included Material: ABS and PC Dimensions: 16.5 x 16.5 x 6 cm In the box: clock, USB cable, user manual The lamp starts before the alarm does. Light climbs from 10 percent to full brightness in the minutes ahead of the set time. The room brightens first. The sleeper follows. Sound is the backup, not the event.The face is a circle, 16.5 centimeters across. The Full Screen version lights the whole face. The Half Screen version lights the lower half and keeps the time visible. Both sit flat on a nightstand.At night the cycle runs in reverse. Sunset mode dims the lamp step by step. The 15 colors and 20 brightness levels cover reading, late feeds, and finding the door in the dark.Two alarms hold separate schedules. One for weekdays. One for weekends. Neither needs resetting.