No electricity, batteries, or external power required—simply open the water source to activate lighting. 360-degree universal rotation allows water to cover the entire sink, making sink cleaning easier even in cold weather. Temperature-sensing color change: the light changes color based on water temperature. Cold, warm, and hot water display distinct colors. When water temperature is below or equal to 31°C, the light turns blue. When water temperature is between 32°C and 43°C, the light turns green. When water temperature is between 44°C and 50°C, the light turns red. When water temperature exceeds 51°C, the red light flashes as a warning to prevent scalding. Quality tested: each faucet light undergoes multiple inspections to ensure no leaks and proper function. Self-powered by water pressure: no batteries or electrical power needed. Eco-friendly and safe with long service life. High-speed, strong magnetic motor ensures consistent generator performance under normal water pressure for reliable LED illumination. Sealed inner core design prevents rust from prolonged water exposure, ensuring high efficiency and stable motor operation. Specifications: [Interface size] 22mm internal thread (fine thread six branch pipe) [Product size] Length: 58mm, Outer diameter: 24mm [LED quantity] 1 piece [Material] ABS engineering plastic with electroplated finish Package Included: 1 x Rotating faucet light Note: Sufficient water pressure is required for the light to operate normally.