SCHEDULE FUNCTION: Up to 9 different ON/OFF programs can be set in a week ; every ON/OFF program repeats every week. It is possible to program the ON/OFF times on particular day or blocks of days. EASY TO PROGRAM: Just press the buttons to set the current time and ON/OFF time. then select the timer mode (Always on/off/Auto). Comes with a LCD display and complete instructions. PROTECT YOUR HOME: Features a "random" function to randomize your programmed lights. Make your home look lived in even when youre away. Built-in battery retains programs even in a power outage and saves you the trouble of having to reprogram. AUTOMATE YOUR HOME: Ideal for home lighting. coffeemaker. heater. fans. Christmas light. greenhouse growing lighting. humidifiers. aquarium. fish tank and other electrical appliances. Save money on electricity and help preserve the life of your devices 15 MONTHS GUARANTEE: CE certificated ensure its safety. Please be assured purchase. this timer would be a good helper for your daily life please feel free to contact us via our customer service email. and we will reply within 24 hours.