Environmentally friendly and double power supply: solar fountain with solar energy, no battery or electricity required. It can also be powered via USB, which can effectively solve the problem of low water jet in low sunlight, and can be used normally even on cloudy days, constantly recycles water, no running costs.Multiple uses: the solar bird drinking pump can be mounted on the wall and grounded to fully absorb solar energy. It has a more stable performance and a longer working time than conventional circuit boards. With filter cotton to shorten cleaning times.Easy to use: place pond pump solar on the water, floating free-standing solar fountain bird bath runs automatically when the panel gets enough sunlight, no plugs required, no wiring, easy to install a.