- Temperature Control: Built-in hydroelectric power generation system, no battery or external power supply is needed. The LED will light up when the water source is connected; - Colorful Glare: the principle of RGB three primary colors, the new color is mi*ed with red, green and blue according to the time, and a pattern changes every 1-3 seconds to form a colorful effect; Case Material:Eco-friendly ABS; Surface Treatment:Electroplating; Installation Interface:1/2 Inch; Feature: * Self-powered Active No batteries, no wire needed. Self-powered by enough water pressure only, more efficient and more safe; * Color-changing Automatically 7 color-changing are displayed circularly and gradually when the water runs through. (NOT affected by water temperature), a dream bathing for you; * Bring Fun Let your kids love shower. LED lights change color turning ordinary showers into invigorating fun for your entire family; * Create Romantic Atmosphere Colorful light array can be great for perfect mood with the special person in your life; * Convenient and Durable ABS durable material, subtle screw. Easy to install by yourself, without any other assistant accessory and fits all standard connectors; Packing Include; 1*LED Shower Head(Not include hose and shower holder)