iPower PC-TM 10kVA Automatic Voltage Regulator with 5 Relays, Digital Display, and Multi-ProtectionRated Capacity: 10kVA (10000VA) Input Voltage Range: 90V270V AC Output Voltage: 220V 10% Frequency: 50 60Hz Response Time: <0. 5s (for 10% input voltage change) Efficiency: 90% Protection Features: Overvoltage, Undervoltage, Overload, Short Circuit, Overheating Delay Function: Selectable long (255s) or short (5s) delay Display: Digital LED display showing input output voltage and operational status Operating Temperature: 15C to 45C Humidity: <95% RH