| 摘要 |
<p>A controller 1 for use with a mechanical switch 2 comprises at least one sensor 9, an actuator 6 and at least one attachment member 5 suitable for attaching the controller to the mechanical switch, such that the actuator is brought into contact with the mechanical switch. The actuator is arranged to operate the mechanical switch in response to a signal from the sensor. The sensor may be a PIR person detector or a timer. The actuator may be an elongate arm having a protrusion 7 to contact the mechanical switch. The controller may have a battery.</p> |
