9 Power electronics and control systems in the nature of power control products, namely, grid-connected electronics, namely, converters, inverters, microconverters, microinverters, and software for controlling the converters, inverters, microconverters and microinverters for use in connection with renewable and alternative energy sources, namely, solar energy, wind energy, hydraulic flow energy, and fuel cells; power conditioning products, namely, grid-connected electronics, namely, converters, inverters, microconverters, and microinverters, and software for controlling the converters, inverters, microconverters and microinverters for use in connection with renewable and alternative energy sources, namely, solar energy, wind energy, hydraulic flow energy, and fuel cells; and power conversion products, namely, grid-connected electronics, namely, converters, inverters, microconverters, microinverters, and control systems comprising a device for controlling the switching function of the converters, inverters, microconverters and microinverters for use in connection with renewable and alternative energy sources, namely, solar energy, wind energy, hydraulic flow energy, and fuel cells