From this package price a powerful inverter plus 60 pcs 425w N-series solar panel This powerful device is safe: Its housing class is IP66 and AFCI protection reduces the risk of fire. Remote update and management is possible through reskistering to SolisClud.Additional accessory WIFI / LAN data transfer module.Experiential efficiency 98.7% wide voltage range and small start-up voltage plant guarantee 10 years compact and easy to install and maintain> 150% DC/AC ratio support with lower installation costs than high-performance modules