Product Name:solar fountainSolar Panel: 7V/1.7W MonocrystallineSolar panel size: diameter 130mm, 160mm,Pump parameters: DC 4.5-12VMaximum flow: 200L/hMaximum lift: 110cmMake sure to place the fountain in the sun,Always keep the pump below the water surface.The first time you put it in the water, press the fountain into the water below the surface to expel the air from the pump.Stains on solar panels require regular cleaning.The pump needs to be cleaned regularly to avoid clogging with debris.If there is no sun for a long time, the power of the battery will be exhausted.If you have any questions, I will answer you in time within 24 hours, I wish you a happy life!