Amazing Faucet Light™, a Hot/Cold Faucet Light, adds a brilliant heat-sensitive light stream to any faucet!
Running water activates the bright LED that lights up the water -- RED for hot and BLUE for cold! Turn off the water and out goes the light. Faucet Light installs in less than a minute and easily connects to almost all standard household faucets. Color changes at 89°. Set includes 3 button cell batteries, wire screen, and 2 universal adapters.