No electricity, batteries, or external power required—simply open the water source to activate lighting. 360-degree universal rotation: water flows in all directions, easily covering the entire sink for convenient cleaning even in cold weather. Temperature-sensitive color changing: LED light changes color based on water temperature. Cold water appears blue, warm water green, and hot water red. - Blue: water temperature at or below 31°C - Green: water temperature between 32°C and 43°C - Red: water temperature between 44°C and 50°C - Flashing red: water temperature above 51°C, indicating potential scald risk Quality tested: each faucet light is thoroughly inspected to ensure no leaks and proper function before shipment. Self-powered by water pressure: generates power through water flow without the need for batteries or electrical power, offering safe and eco-friendly operation. High-speed magnetic motor: ensures reliable power generation and consistent LED performance under normal water pressure. Sealed inner core: advanced fully enclosed design prevents rust and corrosion from prolonged water exposure, maintaining motor efficiency and stability. Specifications: - Interface size: 22mm internal thread (fine thread, six-prong pipe) - Product dimensions: 58mm length, 24mm outer diameter - LED quantity: 1 piece - Material: ABS engineering plastic with electroplated finish Package includes: - 1 x rotating faucet light Note: Proper lighting requires sufficient water pressure.