Universal switch insert 2-way 2-wire. Universal switch insert 2-way, low energy consumption, automatic setting of the minimum starting brightness for 230 V LED and energy-saving lamps, lamp-friendly soft start, phase leading or trailing edge per series depending on the load type, self-learning, short-circuit proof and overload proof (electronic fuse), optional fine adjustment of the load type, with 2 extension inputs for buttons (normally open) with single-surface operation, also suitable for attaching suitable KNX radio attachments, can be expanded using universal power add-ons Plus REG, no conductive connection between the support ring and spreading claws, with screw terminals.