Specifications: Housing material: ABS LED emitting color: 3 colors Internal diameter: 1.5 cm Outer wire diameter: 2.2cm Item size: 3.5*2.4*2.4cm Item weight: 22g Functional descriptions: LED light color: Blue/ Green/ Red (Temperature detectable) 1. When the water flows down, the LED lights up instantly and automatically: A. When the water temperature is lower than 32 degrees, the blue color will automatically display; B. When the water temperature is between 33 and 41 degrees, GREEN color will be displayed automatically. C. When the water temperature is between 42 and 45 degrees, the ROULEUR color will automatically display. D. When the water temperature is over 46 degrees, the color FLASH RED immediately. WIDE APPLICATIONS: This small device is suitable for most faucets that have the internal or external threads. 3 COLOR CHANGE WITH TEMPERATURE: Blue color shows when the water temperature is 32 degrees. Green color is displayed when the water temperature is between 33-41 degrees. The red color appears when the water temperature is between 42 and 45 degrees. Red color flashes when the temperature exceeds 46 degrees. PREMIUM MATERIAL: Made of ABS with excellent corrosion resistance. Ideal for bathroom or kitchen, very fantastic and durable. EASY TO INSTALL AND WATER SAVING: The led faucet faucet has water conservation function and connected at the top with the filter water-saving, Convenient to use. Helps children avoid scalding water. A must have device for every home. WARM WARNING: If the LED water faucet lights up, it needs a certain water pressure. And it wont turn on if the water pressure is too low. The faucet is made of ABS, so recommend wrapping PTFE tape on the thread when installing the faucet. Be careful not to force too much during installation. (ABS material is easily broken if you force too much.)