The power supply board is 220V which is ideal for Brother Printer DCP-T500W / DCP-T700W / MFC-T800W / T300 / T500 / T700 / T800 / T800w / T700w / MPW0931 / LT2613001. This power supply draws very low voltage for Brother printer use. It does not short circuit in electricity and can be used in the printer for a long time.