Beelee Contemporary 12 inch Stainless Steel LED Rainfall Shower Head with Color Changing LED Light 1.Self powered by water pressure--No battery or other electricity required. 2.When water flows down, the LED will light instantly and automatically . 3.we gained high reputation with the good quality and best service from the customers . 4.Our company has professional production line,the goods are produced by strictly supervision and inspection,the quality is absolutely assure 5.The products can be made of different materials such as brass, zinc alloy, space aluminum, stainless steel etc for your option