1.Supply for home and field working 2.Charge many kinds of digital items such ... , even if cloudy day, weatherproof, Supply for mobile phones, digital cameras, electric fans, small appliances for home use, etc. Specifics:1.Size: 180*130 ... avoid full discharged and over charged.10.Usage: 2pcs LED lamps include,could light continuously for a long time. solar power system for home