... , streets, subway and schools. Coin and touch-free IC card sales modes, economic, convenient and sanitary.Applied American advanced ... sand, alga, chlorine, heavy metal, organic composition and germ.2 4-hour non-stop ultraviolet sterilization, ... quantity.Automatic light sense control for lamp housing and examination, electricity saving. Performance: Item400Gallon600Gallon800Gallon1300GallonPowerAc~220V ...