Power Excellent series large power UPS is true online, double conversion topology, with most innovative design and patents, power your business with the highest power quality. Environment friendly, high efficiency and high reliability provide the lowest TCO (Total Cost of Ownership). This series UPS is fully digital controlled, armed with several DSP, MCU, CPLD, and it can parallel up to 8 units for redundancy or capacity. It is truly a perfect high quality and innovational