Hama 00047679 programmable Digital Timer can be used to set specific on and off times for your electrical appliances, such as coffee makers or lamps, for energy saving or home security purpose. The countdown function can switch connected devices on and off at specific times, while the random function can switch the device on and off irregularly, which could prevent break-ins during your absence. The LCD screen displays programming status and time. When the timer is programmed, the red light is on. You can program up to 98 on and off times per week.