Abstract: The invention relates to an illumination device, comprising a base body, at least one light module and at least two functional units having different functionalities to one another, which are adapted to be optionally connected to the base body, each functional unit being adapted to be connected to and disconnected from the base body in a repeatable manner, so that, depending on the requirement, a predetermined functional unit can be inserted into the base body or replaced by another functional unit, each functional unit having a mechanical interface which is configured substantially in the same way across all functional units and which is adapted to engage with a matching receptacle on the base body such that the respective functional unit is secured to the base body.

Abstract: A drawer block of a support system, the drawer block including at least one drawer accommodation including a housing defining a receptacle, a drawer including a lock having an actuator and a mechanism configured to lock the drawer in the receptacle of the drawer accommodation, and a receiver assembly that is electrically connected to the actuator and configured to convert an opening signal to an opening instruction for the actuator.