PFV Series ZODORE 3000w Peak 9000w Low Frequency Pure Sine Wave Inverter/ Charger Built in with MPPT 60amp DC 12v AC 110v Converter Inverter/ac Charger/transfer Switch/solar Charger all in One! 1.ZODORE PFV Series 3000W 12 volt low frequency Power inverter charger Build in with MPPT 60Acontroller. 2.This Low frequency inverter/charger produces a pure sine wave, which some appliances require for use. This allows it to run laser jet printers, computers, televisions, other medical equipment and more. 3.This unit allows a 300 percent surge capacity for up to 20 seconds. 4.It also has a built-in multistage smart battery charger, which uses AC power from the grid or from a fuel-powered generator, that can be used to recharge a battery bank as well. 5.Use this product for renewable solar, off-grid, mobile and emergency backup power applications anywhere