EASY TO USE: Just put in the water, the pump to work in 3s once exposed to sufficient sunlight, perfect for bird bath, fish tank, small pond, pool, garden decoration, water circulation for oxygen. KEEPING THE PUMP IN THE MIDDLE OF THE BIRD BATH: Our company has designed a retainer to avoid the random movement of the solar fountain pump. It prevents the solar powered water fountain from spraying water outside the bath and empties water quickly. No more wasting time on filling water. USE ADVICE: Make sure to use the solar fountain in clean water and under direct sunlight, a larger birdbath is recommended to prevent splashing out of the birdbath.