Brushed Silver Faucet Light - Temperature Controlled Faucet Light Brushed Silver 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