A safety end cap assembly includes an end cap base element to be arranged at one end thereof on an end of the elongate housing, at least one connector pin extending along a longitudinal axis of the end cap base element, an electrical switch electrically connected to the connector pin and switchable between an open state and a closed state, and an end cap cover element arranged slidable on the end cap base element between a protracted position where the switch button is covered by the end cap cover element, and a retracted position, where the switch button is exposed. When protracted, the end cap cover element extends beyond the end of the end cap base element, and for sliding the end cap cover element from its protracted position to its retracted position, the end cap cover element is moved towards the end cap base element.