Set the multimeter to AC voltage mode. Measure the voltage at the inverter’s input terminals. Confirm that the reading matches the inverter’s rated input voltage range (e.g., 220V, 380V, or 480V AC depending on the model).
[pdf] Inverter air conditioners are energy-saving air conditioning units equipped with an inverter-driven compressor. An inverter-driven compressor has the ability to increase or decrease its rotational speed thereb.
[pdf] Solar micro-inverter is an inverter designed to operate with a single PV module. The micro-inverter converts the output from each panel into . Its design allows parallel connection of multiple, independent units in a modular way. Micro-inverter advantages include single panel power optimization, independe. To determine the suitable voltage for solar photovoltaic (PV) panels, 1. the voltage typically ranges from 12V to 48V depending on the application, 2. system voltage must match the inverter specifications, 3. higher voltage systems can be more efficient, and 4. safety considerations should not be overlooked.
[pdf] 
