Electrical connectors; contacts, electric of precious metal; connections, electric; time switches, automatic; wire connectors;  electric connections, namely, electric sockets, plugs and other contacts; electrical control panels; photovoltaic installations, namely, photovoltaic cells and modules, photovoltaic solar modules for generating electricity in the nature of photovoltaic power plants; couplings, electric; chips, namely, integrated circuits; relays, electric; cables, electric; electric distribution boards, namely, circuit boards