When water flows, the LED lights up instantly and automatically. The LED shower head is powered by running water, with no batteries or wires required. It relies on hydraulic drive technology to generate its own power, eliminating the need for an external power supply, making it safe and environmentally friendly. The faucet light changes color based on water temperature.Excellent corrosion resistance - Made from ABS material known for its durability and resistance to corrosion. Features precision-polished surface with multiple layers of nickel and chrome plating. Ideal for use in bathrooms or kitchens.A perfect gift - Engages children and encourages handwashing. Adds fun and excitement to everyday routines, bringing wonder and delight each time the tap is turned on. Enhances ordinary setups with a touch of entertainment.7 colors - Automatically cycles through seven different colors to create a unique atmosphere in your bathroom. Provides a relaxing bathing experience and makes bath time more appealing for kids. (Note: Color change is not affected by water temperature.)Ideal for daily use - Designed with optimized nozzle size to help conserve water. The built-in LED provides sufficient brightness, reducing the need for additional lighting and helping save energy.