Unique design DC120V Advanced DSP technology, high stable Input 40-70HZ Environment protectioN Output PF 0.7/0.8 Introduction:Power Master Series Online HF UPS1-6kva, is of fully of advanced DSP Online HF UPS. It has high adaptability, performance, compact design and less batteries to reduce your space and installation cost.Perfect Application:Network, data centre, servers and workstations, ...