These heavy duty 24 hour timers can be used to turn on lights fans pumps and other heavy duty loads for energy savings security and convenience. Its compact quiet low profile design has easy to set tabs for precise 24 hour control. Easy set tabs provide for minimum on-off times of 20 minutes for up to 36 ON-OFF events daily. A manual ON or OFF override provides for permanent on or off override of loads at any time. The E1220 model is a single timer with a two gang switch plate for a toggle switch. Toggle switch is not included