1.Pure sine wave AC output, higher power efficiency; 2.Lead-acid battery, safe and reliable; 3.Portable,easy to operate,DC output system with multiple interface can satisfy various demands; 4.Lead-acid battery, safe and reliable; 5.Charging and discharge independently; 6.Capacityselected: 600w 1000W 1500W 2000W; 7.Dual DC output for lamps， fans， etc; 8.The smart device supports 2 USB outputs; 9.The overall protection features include:Low-voltage alarm & snutdown, ovein-vonrate tion:, oprotection, over-temperature protection, reverse polarity, soft start，grounding protection; 10.Built-in Intelligent Cooling Fan; 11.High efficient solar charge conteoller for charging your battery bank. 12.All in one: battery charger, solar charge controller, power inverter, battery , UPS function all in one system.