An electric lawn mower may include a switch assembly including a first switch, a second switch and a main switch. When the main switch is turned on an electric motor is started. The first and second switch may include first and second actuators, respectively. When the switch assembly is operated according to a proper operation sequence, the first actuator and the second actuator may interact with each other to activate the main switch, and when the switch is operated according to an improper operation sequence, the first actuator and the second actuator may not interact with each other, so that the main switch is not activated.