LED Faucet Light Warns You of Impending Burning, Glow blue and red to warn you of the temperature. it changes color based on the temperature, making you feel like you're doing the dishes with either antifreeze or Gatorade.
It's a cool concept, as you won't have to worry about scorching your hand while testing the water again. If it's red, don't mess with it.
If the water temperature is under 40±2 (degrees Celsius) , the LED faucet light will emit blue light; If the water temperature is over 40±2 (degrees Celsius) , the LED faucet light will emit red light. Batteries can be changed/replaced by new one when they are used up ,The waterbasin and waterstream will be illuminated by the faucet light when water flows.