Prolink 1500VA Offline UPSSpecification Main Feature Capacity 1500VA Load Capacity 900W Input Voltage 230VAC Output Voltage 10% Frequency (Battery Mode) 50 or 60Hz 1Hz Battery Number of Battery: 12 V 10 Ah x 2 Recharge Time (typical): 2 4 hours recover to 90% capacity Alarm LED Display: AC Mode Green Lighting, Battery Mode Yellow Flashing every 10 seconds, Overload Red Flashing every second, Fault Red Lighting Input Features Voltage Range 140 300 VAC 5% Physical Specification