Universal touch dimmer 2-way 2-wire, round support ring. Universal touch dimmer 2-way electronic platform, 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 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) single-surface operation, also suitable for attaching suitable KNX radio attachments, no conductive connection between support ring and spreading claws, with screw terminals.