16x31 inch; Built-in 40 RGB LED lamp; 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: 49'C, be careful to avoid being burned, red flashing prompt; Service lifetime: >6, 000 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 give your bathroom decor a modern update