E-TRENDS Solar Powered Bird Bath Fountain Pump, Free Standing Garden 1.4W Solar Water Pump W Floating Design, Outdoor Watering Submersible Pump(Birdbath & Stand Not Included) This solar-powered decorative fountain is made up of highly efficient solar panel and new brushless pump Minimum water depth in fountain should be 1 3/4",Maximum water height: 18",Regular:10~15" Start-up fast, efficient and strong stability. Starts automatically in 3 seconds when bright sunlight shines on the solar panel directly without any shadow,floats on the water and has no electric outlet or external battery Suitable for bird bath, fish tank, small pond, garden decoration, water circulation for oxygen, etc. 12 months warranty & 30 days money back guarantee, buy with confidence.