Soledi LED Water Stream Tap Glow Shower Head Faucet Light Temperature Sensor Kitchen Bathroom color Blue No Need Battery This LED Water Faucet fits on most taps and LED light will light up when you turn on the tap. Ideal Easy to install and remove, No batteries, no wire needed. The light is activated by water pressure and turns off automatically with the water.Transforming Internal thread diameter: 22mm, Size:3.8*2.5cm Material: ABS, LED Light Color: Blue