1, Power Inverter 2, Pure sine wave 3, With charger inside 4, ... , test equipment, and etc.Description:EPSI Series Inverter provides pure sine wave power for commercial, household and industrial applications. Capacity ... normal model, overload will activate the beeping warning until loading is reduced to normal range. Shorter transfer time<4ms, make ... .409.5013.2017.20 1000VA Pure Sine Wave Power Inverter