... anti-thunderstruck, steady output voltage frequency, good adaptability and practicality. Inside the SPS, there is provided ... Microcomputer systems, communication systems, hospitals, lighting tools, and storesParameters:Output voltage: 220V±10% or 110V ... and load power of storage batteryEfficiency: ≥0.75Battery method: HBC is the external connected battery Inverter and Charger(converter),LCD display ...