This Velleman Relay Switch kit has 14 different functions including timers, switching, flashing, interval, random switching, ... Two pre-programmed delays. Learning mode for delays of 2s up to 12 days. Pushbutton control. EEPROM for delay time storage in case of power failure. On-board transient filter for the relay contacts. The K8015 is suitable for control of incandescent lighting, halogen lighting, fluorescent lighting, fans, valves, buzzers.