3 Colors ChangingThe LED shower head with light 3 colors changed by the water temperature (88F/31 green, 89F-110F/32-40 blue, 111F-122F/41-45 red and more than 45 red white flash), reminding you of the water temperature to avoid scalding. Made of Eco-friendly Materials and Durability: ABS chrome material and corrosion resistant. The showerheads was made of good quality material, durable to use. New Technology. Hydropower DesignNo batteries and external power supply needed, it will illuminate automatically after water flows out. Safty and energy saving. Easy to InstallConnector size: 1/2G 20mm Standard Size. The universal rain shower is easy to install, suitable for screw handles with a diameter of 20mm. The shower handle is directly connected to the shower pipe. No tools needed. Dream and FantasticThe shower light is activated by water pressure and turns off automatically with the water. A very practical and stylish LED shower spray head for your bath room.