*It's featured by its good waveform of output voltage, stable voltage regulating process and no power failure; high precision of output voltage, with a default adjusted within 220V±3% usually, wide range of input voltage and strong adaptability of load; satisfactory load characteristics; and protections from output overvoltage, undervoltage and overcurrent. In case of output voltage higher than the set value, input overcurrent (overload) and short circuit, this machine can cut off the output power supply
automatically to ensure safe operation of electric equipment.