HBC-PSW type, LCD display ,veritical type,pure sine wave HBC-PSW1000VA, HBC-PSW2000VA, HBC-PSW3000VA, HBC- ... voltage: 220V±10%Output frequency: 50Hz±2% automatic stabilized frequencySwitching type: auto switch in 3sOutput wave form: sine waveEfficiency: ≥0.7Battery ... battery, us14.5-15V (other voltage is multiplied) HBC-PSW type pure sine wave inverter/charger(converter)