uxcell AC 120V US Plug 12/24H Digital LCD Electronic Timer Switch Socket Time setting is including hour, minute and week. Large LCD display, easy to read and set. Rechargeable battery backup assures you stay on schedule even after a power outage. This timer switch allows you to set programs for individual days or various combinations of days. Random switching function and summer mode, featuring DST daylight saving time vacation setting. Widely used throughout home for fans, phone chargers, kitchen appliances, electric tooth brushes etc.