Feelle Solar Fountain Pump with Battery Backup, Solar Powered Bird Bath Fountain 1.5W Upgraded Solar Panel Kit Water Pump for Birdbath, Pond, Pool,Garden and Lawn

B07CWQCCSM Product Features Build-in Battery : The fountain pump has a built-in battery backup which can storage power when the panel get sunlight, making it continuously spray water when cloudy. Smart water-level monitoring system: the pump will stop working automatically when the water is runing out to protect the fountain, Continue Reading