Abstract: Apparatus, use and a method for controlling an output power provided to at least one electrical component are described. The apparatus includes at least one module with at least one electronic circuit for providing an output power, adjustable via rotation of at least one rotary element, to at least one electrical component when the electronic circuit is electrically connected to an input power supply that supplies power to the electronic circuit. At least one first switching element is configured to electrically disconnect at least one of the at least one electronic circuit from the input power supply when the first switching element is in a first predefined state. At least one actuator element that is rotatable between a first position and a second position is configured to switch a respective first switching element to the first predefined state when rotated from the first position to the second position.