Handy Trends Nozzle Light - Temperature Controlled Faucet Light,Hog Wild" /> Chrome Temperature Controlled Faucet Light Includes Color changing Faucet Light, Batteries and Universal faucet adapters When the water is cold, the light turns bright blue, and when the water reaches hot (89 degrees F/32 degrees C), the light automatically turns to red. Included adapters fit most faucets in the USA. Ages 14 and up