Features: No batteries, no wire needed. Fits all standard connectors, easy to install. Brightness is such enough even no other lighting fixtures need. The light is activated by water pressure and turns off automatically with the water. 7 colors are displayed circularly and gradually when water flow (the light colors are NOT affected by water temperature). Offers you delightful bath and wonderful experience. The shower handle connects directly into your shower pipe. A very practical and stylish LED shower spray head for your bath room. Get the CE RoHS certificates.