... ,LCD display inverter 3,pure sine wave inverter 4,super charger inside 5,CE ,SONCAP EP3000series pure sine wave Super battery charger inverter Main features:1 ... Voltage110V/115V/120V Selectable220V/230V/240V SelectableVoltage WaveformPure Sine waveCrest Factor3:'1Output FrequencyAuto Select for 50/60Hz,47Hz ... 4000W/35kg ;5000W/38kg ;6000W/40kg EP3000series pure sine wave Super battery charger inverter