This Temperature Sensitive Faucet Light with HOT, COLD water detection colors when the temperature of the water changes, ensuring you know by sight exactly what to expect before you wash your hands, brush your teeth, shave. Even flashes red if the water is too hot (above 45 Deg. C) so you do not burn yourself. This little device fits onto most taps and lights up a set when you turn on the tap, transforming the stream of water into a beautiful waterfall of light. Package includes• 1 x Temperature sensitive Faucet Light with Pre-installed Batteries• 2 x Universal AdaptorsGet a Free Sink Snake with the Purchase of Temperature Sensitive Cold & Hot Facet Light! Descrip tion: 1)Reduce costly plumbing bills 2)No more chemical slow moving drains 3)Use for bathroom sinks,showers,a nd tubs 4)Flexible design-no need to remove drain stopper 5)Unclog slow drains or prevent small clogs form becoming bigger.