When water flows, the LED lights up instantly and automatically. The led shower head is powered by running water, no nasty batteries or wires ever used. Rely on hydraulic drive generating its own power, no need power supply, safe and environmental. The sensitive faucet light will change color depending on the water temperature. ;Excellent Corrosion Resistance - Made of ABS material with excellent corrosion resistance. With surface precision polishing and layers of nickel and chrome plating. Ideal for the bathroom or kitchen, very fantastic. ;A perfect gift - As a toy, it keeps children entertained. Children will wash their hands there more. Great value as a bit of fun for the kids and they love them. Gasps of wonder and laughter of delight every time they turn on the tap. Adds a bit of fun and interest to a boring setup. ; 7 colors - The color will change automatically and create a special atmosphere in your bathroom. You can enjoy the pleasant bath after a long day. Also, the colorful light can make your kids fall in love with bathing. (The color will not be affected by water temperature.) ; Ideal for life. The correct nozzle size can help you save water. The brightness is such that there is no need for other lighting fixtures to help you save energy.