The device works properly. With an input voltage of 120 volts it produces 244 volts (close enough). However, note that the output is UNBALANCED. You get 93 volts on one phase and 131 volts on the other phase. This unit CANNOT be used to convert a 120 volt generator and power your home. The phases are unbalanced and you could damage your equipment. This is a good product if you only have 240 volt loads.
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