Description Capacity: 35500VA Input voltage: 230Vac Output voltage: 230Vac Output Waveform: 60Hz Battery Rating: 1*12V9Ah Backup time: 3-20 minutes Short transfer time Intelligent battery management Auto shutdown when Battery low Inverter Compatible Excellent microprocessor control guarantees high reliability Cold start function Off-mode charging Boost and buck AVR for voltage stabilization. Color: Black