... during the day will be stored in maintenance-free storage battery, the night the system automatically controls the ... Can be widely used in agriculture, forestry, vegetables, storage, tea, tobacco, orchard gardens, greenhouses, vineyards, ... Wolfberry.System Configurationl Solar battery components: 40WP, monocrystalline siliconl Battery: 12V/38Ah, sealed maintenance free lead-acid batteriesl Controllers ...