Convertitore di frequenza inverter DC-AC 12V a 220V 12W generatore di segnale onda quadra
The manufacturer may allocate the main 400W to the dual 28V windings, and the remaining 100W to the 9V windings and dual 12V windings. The inverter uses 12V, and it can't produce high power at all, even 100W can't be achieved.