Product Description: Material: ABS Finish:Chrome Connection Standard: G1/2 Specification: Features:LED Shape:Round Port:20mm Standard 1/2 inch connection (compatible with all standard shower hoses with size) LED Power Source:Waterflow(not need battery) Simple installation - Very quiet turbine drive 1?? C - 31 ?? C: The effervescent glow Green 32 ?? C - 43 ?? C: The effervescent light Blue 44 ?? C - 50 ?? C: The effervescent light Red Note: When the water temperature exceeds 51 ??， be careful to avoid being burned oh， the red flashes to remind Package included: 1 x LED Shower HeadDetails:The LED Shower Head color Changes with changing Water TempShower head changes the colour of the water coming out by using built-in LEDsThe LED Shower Head is hydro-powered， but the user needn't worry about if it will be leakage of electricityThe shower head handle connects directly into your shower pipe(20mm)And the use can also feel the romance in colorful world and enjoy the LED light Spa Therapy