The problem-solver for the discrete fitting of a wireless switch. The radio switch can be controlled using an external switch, one of the remote controllers or the code lock KM 300 CAC & can switch loads up to 16 A (230 V AC). Along with the purely manual control a switch-off timer is also available, which can be programmed for the turn-on times between 1 s & 4.5 h. In this way, one can never forget turning it off in the bathroom, corridor, garage, outdoors, etc.