A '''dimmer switch''' is a device which allows for the adjustment of power supplied to one or more electric lights. In some rare cases, they are also used for other electric devices, but in many cases doing so would harm the device, so this is rare. | A '''dimmer switch''' is a device which allows for the adjustment of power supplied to one or more electric lights. In some rare cases, they are also used for other electric devices, but in many cases doing so would harm the device, so this is rare. |