LED Rainfall Shower Head: By converting the kinetic energy generated by the high-pressure water flow into electricity, our rain shower head can achieve the function of light, the color of the light is changed with the change of water temperature. The visual temperature can realize the function of preventing burns.Tips:Blue is cold water; Purple is warm water; Flash Red is hot water Handheld Shower Head with LED: The principle of handheld showerhead lighting is also using hydropower, but in order to increase the color richness, in cold water, the light is green; In warm water, the light is blue; In hot water, the light is red and needs to be protected from burns High Quality Shower Head with Extension Arm: To ensure the long service life of our shower head combo, we use stainless steel shower heads and 180° adjustable extension arms, flexible adjusting joints and anti-rollover Settings so that you can safely choose your shower Angle High Pressure Rainfall Sensation: Ultra-thin