2.3" LCD 24-Hour/7-Day Progranmmable Plug-in Wall Energy Saving Outlet Timer Switch Smart Control Socket with 3-prong Outlet for Lights and Appliances - 1800W/15A , UL Listed 24-Hour/7-Day programming; Up to 10 on/off settings per day; 1800W/15A Saves energy by automatically turning lamps, fans, christmas tree lights and other electrical devices on and off Comes with a convenient manual override switch and an easy-to-read large LCD display Built-in battery backup,rechargeable battery backup assures you stay on schedule even after a power outage SUMMER TIME SWITCH: it can easily switch between Standard time and Summer time(DST); Interchangeable 12-hour/24-hour format, 1 Year Warranty included.