Welcome to Powerex, the leading UPS devices manufacturer, established in 1986. We provide full series including line-interactive UPS, on-line high frequency UPS and on-line low frequency UPS. Our UPS devices are 100% made in Taiwan it allows switching to UPS supply automatically when external power supply is off or abnormal over high or low voltage. Featuring multiple audio warning functions, custom long time discharge model acceptable and containing various LED indicating functions. Here you can find high quality and high efficiency UPS device, please feel free to contact us to get more details.