ZUP power inverters are manufactured by referring the advanced circuit design at home and aboard, adopting the imported. Integrated PWM for control and high power crystal modular pipe for drive. The power supply inverters offer the featured of quick strain, anti-interference, anti-thunderstruck, steady output voltage frequency, good adaptability and practical. Inside the SPS, there is provided with a battery while the external battery terminal is also provided, which can help you to get red of the trouble of the power failure