Built-in 24-LED RGB light; No battery needed; Visually displays current water temperature; LED color changes according to water temperature; LED light is activated when the faucet senses water flow; Mode: blue: </= 29'C; green: 30~39'C; red: 40~49'C; When the water >49'C be careful to avoid being burned red flashing prompt; Service life: >6000 hours; Environmentally-friendly and energy-saving; Stylish and durable easy installation; Clean the surface regularly with water and wipe with a soft cloth; For difficult stains or spots use a mild detergent or colorless glass cleaner; Give yourself a gift with this stylish shower head and to give your bathroom decor a modern update