Inverters can be classed according to their power output. The following information is not set in stone, but it gives you an idea of the classifications and general power ranges associated with them. Th.
[pdf] An inverter converts a 110 Volt DC voltage (battery) into an AC voltage (230V-50Hz). The standard output voltage is 230 Volt, 50Hz with a pure sine wave. This means that this inverter supplies the same type of voltage as the wall socket. This allows any electrical device to work on it.
[pdf] A UPS can help mitigate low voltage issues by supplying a stable power source when the main supply fluctuates or temporarily fails. It converts stored battery power into a consistent AC output, ensuring the inverter remains operational.
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