PF Series ZODORE 1500w Peak 4500w Low Frequency Pure Sine Wave Inverter/ Charger DC 12v AC 110v Converter 1. PF pure sine wave inverter is the latest model developed on the base of our previous PSW 7 series, the PF charger has achieved significant improvements on battery charging, AC transfer, etc. By adopting DIP (dual in-line package) switch, the PF pure sine wave inverter provides more smart options for users to customize the performance of the device. 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, it brings you long-term trouble free operation beyond your expectation.