The countertop faucet is made of high-quality brass, offering enhanced performance and durability. The brass we select meets European and American standards, is lead and nickel-free, preventing lead poisoning and protecting your family's health. 3-color LED light: 3 colors change according to water temperature: 0-29°C (blue) for cold water, 29-39°C (green) for hot water, 40-100°C (red) for hot water. It reminds you of temperature changes and provides more convenience. The hydroelectric LED living room faucet uses the most primitive water pressure to generate power. When you turn on the bathroom faucet, an electric current is generated, which illuminates the LED light. You don't need to waste batteries and electricity bills. (Low water pressure may make the light source too dim.) Easy installation, all parts included in the package. Easy installation with a wrench, no plumber required, saves money and time, DIY installation completed in less than 30 minutes.