Faucet Aerators descriptions We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Led Water Faucet-colors Changing With Temperature Sensor. Features: You May Puzzled with the Temperature of Water Unless You Touch It, Now with This Device This Problem is Solved. The Sensitive Faucet Light Will Change Colors According to the Temperature of Water. No Batteries and External Power Supply, After Water Flows Down,it Will Illuminate.Powered by Water Flows. Specification: Case Material: ABS External Thread Diameter: 23.5 Mm Universal Adapters Diameter :23.5 Mm Universal Item Size: H32 X D25 Mm Light Color: Type-B:7 Change Randomly, No Sensor. Type-A:3 Change, Wiht Temperature Sensor. When Water Temperature is <30degC, There Will Be Blue Color When Water Temperature is Between 30degC ~ 39degC, There Will Be Green When Water Temperature is Between 40degC ~ 49degC, There Will Be Red When Water Temperature is Above 51degC, It Will Be Red and Blue Flickering Together Direction For Use: Firstly, Take off Net from Tap Screw Thread. Secondly, Install LED Faucet Light Screw Thread. Thirdly, Usage of Adapter Screw Thread Inside Universal Adapter. Package Include : LED Water Faucet X1, Adapter X1 . Products number : SOMONO80071