450W Portable power station is a DC to AC inverter that increases the DC voltage, and then changes it to alternating current before sending it out to power a device Our portable power station can offer power anywhere anytime to various electronic or electrical devices off the grid. It is perfect for home backup power and outdoor power source,like camping,on trip,outdoor camera shooting,night fishing,power outage,etc 450W Portable power station is a rechargeable battery-powered generator. Equipped with AC outlet, DC carport and USB charging