A 100% Whole-Home Power: Get 12kW output and 12kWh capacity to run every appliance-even a 5-ton AC A Four 400W solar panels provide up to 1.6kW renewable input, recharging with solar energy A Fast, Hassle-Free Installation in just 7 days A Smart Savings by up to $6,000/year. A The Industry&';s Highest Safety Standards: EV-grade full-tab cells, dual BMS, 3-level safety architecture and IP68 waterproof for solar panel.