The HMS-400/450/500-1T is a single-phase microinverter from Hoymiles. It converts DC power to AC power and feeds it back to the public grid. The system is designed for 1-to-1 microinverters, meaning that one microinverter is connected to one photovoltaic module. Each microinverter operates independently to ensure the maximum power generation from each photovoltaic module. This configuration is highly flexible and reliable, as the system allows direct control of each photovoltaic module's output.