?Outlet Powered Only & Memeory Function? While it is a plug in wall clock, our clock has a 1* CR2032 battery backup that saves your time and settings, so you don't have to reset them after a power outage. The screen goes off during battery backup. ?10 Levels Dimmable Night Light? 10 Levels dimmable night light makes the large digital wall clock versatile for numerous environments. Choose the nightlight brightness that best suits your decor or preference to create a great atmosphere. You can adjust brightness as you desire or turn it off. ?Automatic Brightness Dimmer? The LED wall clock has a built-in automatic dimming sensor, which can also automatically adjust the brightness as the light changes, smart to provide you with the needs. ?8 Color Switchable & Adjustable Brightness? Our wall clock digital numbers can be switched to 9 RGB colors, and it has 5-level adjustable brightness display( included full dark), you can customize the color to suit your personal preference, ensuring it won't be too distracting in dim environments or too dim in well-lit spaces. ?Large LED Display W/ Remote Control? Our wall digital clock features a 16 inch large screen and 4.5 inch clear jumbo digits, which makes it easy to view and read the time, date, indoor temperature, and week from a great distance and all angles.the handy remote control allows you to adjust the LED brightness, set the time, alarms, or timer without having to get up from your seat.