Functional and Fun Light Show! -- An excellent visual tool for young children and the elderly, this faucet light changes color with the water temperature. -- Red lights illuminate the water stream when hot, and blue shines through the stream when cold. The red light is turned on for temperatures of 89 degrees and above. -- Works on most USA faucets and includes universal adaptors for 95% coverage. Simply unscrew old aerator and screw on the Faucet Light. -- Fun for the kid's bathroom and adds elegance to any powder room!
