Organometal complexes which are obtainable with a good yield by using a ligand which can be easily synthesized are provided. A programmable controller implements auto-on, manual-on, reversion to auto-on and override operations with respect to the separately controlled load circuits based on sensor outputs and user inputs. A control circuit controls operation of the solid state switches. In addition, wireless communication modules installed at the desktop charger make the connection with an auxiliary device or data communication device easier.