FS Modified Sine Wave Inverter 1000VA DC12V-AC220V Built-in 15A Battery Charger Power Inverter for Home Solar Emergency Backup Supply FS-1000C is an all-in-one modified sine wave inverter integrating power inversion and battery charging function. It not only converts 12V DC battery power to 220V AC household electricity, but also charges your 12V storage battery via AC mains power. With 600W rated continuous power and 1000VA peak surge capacity, efficiency reaches over 85%.