Automatic / Manual Brightness Dimmer LED Digital Wall Clock - Built-in light sensor with three brightness modes: sleep mode (photosensitive), automatic, and manual. Sleep mode helps you sleep, manual lets you fix brightness, and automatic adapts to different environments for ongoing comfort. - Easy to control: choose sleep, automatic, or manual brightness to suit your needs and avoid being disturbed by the LED display. - Memory and alarm function: the clock must be plugged into a power source to operate, and it has built-in memory so time data is not lost when power is cut off. - Dual alarm: the bedroom digital alarm clock includes two alarms that can be set according to your schedule, providing timely reminders for different routines. - Practical and suitable for daily use: very suitable for children, the elderly, office workers and family members. - Large digital wall clock design: clear LED display for easy reading in any room.