Requires no battery: LED lights are powered by running water, do not require battery or power supply, when you open the shower head, the LED water pressure will activate. With 7 colors, enjoy wonderful bathrooms and beautiful colors. Easy and quick installation: installation without tools, the shower handle connects directly into the shower hose, suitable for all types of connectors. Excellent water pressure: small dense holes designed to ensure that water comes out firmly, gently, and with a constant flow. Improved pressure, and 30% water saved. Made of eco-friendly materials: ABS material, with a transparent design and a high-density filter that is removable for easy cleaning. Strong filtration: The negative ion filter purifies the water. Purification filtration of built-in negative ions, heavy metals, chlorine, bacteria, fluoride and impurities, improves your water quality. LED lights are built into the shower, which can realize the cyclic transformation of seven colors of lights The required electric energy is fully converted by water energy, no additional power/battery is required, and it is and safe. Extremely fast response, lights up when water flow switch is activated. Lifetime exceeds 6000 hours.(If water pressure is too low, it may not emit light normally) LED Shower Head Calcium carbide particles can generate negative ions, fully activate and soften water and achieve antibacterial and deodorant functions. Package Size: 23cmx7.5cmx6.8cm. Shipped Quantity:1 Piece.