500W Solar Power System with AC Output Inverter Power: 500W Solar Panel: 18V 90W, Polycrystalline Battery Type: 12.8V 35AH, LiFePO4 Charging Time: 6-8 hours Discharging Time: 10-24 hours DC Output: 12V, 2PCS AC Output: 220V 50Hz USB Output: 5V 2A, 2PCS Luminous Efficacy: 160 lm/w LED Lifespan: 50000 hours Material: Metal Product Size: 260*148.5*200 (System Host) Warranty: 3 years