... extremely high cost-efficiency.POWER RANGESystem capacity:3 KVA -36KVA, 5KVA-180KVA, 10KVA-200KVA, 20KVA-480KVAPower module: 3KVA, 6KVA, 5KVA, 10KVA, 15KVA, 20KVA ... 1/1GREAT PERFORMANCE INDEXOverall efficiency ≥ 95%, inverter efficiency ≥97%,THDI ≤ 3%, and input PF≥ 0.99Little weight, e.g.36KVA UPS is ... maintenances of the UPS is very easy, just with the power module changed. pure sine wave online UPS