Environmentally safe LED color showerWithout electricity， without a battery. As long as there is pressure， it can shine. Safety and environmental protection.Nozzle parameters:2.0cm external thread， general-purpose interface.Use life:> 6000 hSwitch test: more than 10，000 times， no leakage and functioning properly.Three color lights， water temperature below 31 degrees， green lights. Water temperature at 32 degrees -38 degrees， the blue light. Water temperature above 45 degrees， the red lights.