Connecting electrical cables; Connections for electric lines; Converters for electric plugs; DC/AC power converters; Electric cables; Electric cables and wires; Electric cables, wires, conductors and connection fittings therefor; Electric connections and connectors; Electric connectors; Electric junction boxes; Electrical connections; Electrical connectors; Electrical plugs; Electrical power connectors; Electrical terminal boxes; Welding helmets; Welding masks