Nooled LED Water Faucet Stream Light 7 Colors Changing Glow Shower Tap Head Kitchen Temperature Sensor bathroom accessories -This LED Water Faucet fits on most taps and LED light will light up when water pressure arrive a certain level. -Built in small power generating device. Automatic generation without batteries. It will illuminate after water flows down. -No batteries and external power supply, it will illuminate after water flows down. ABS chroming material, excellent corrosion resistance, durable . -This LED water Faucet fits on most taps IT COMES WITH AN ADAPTER and LED light will light up when you turn on the tap. -IT has a long life span of 50,00 hours