Illuminx HP-HC162 Water Glow LED Faucet with Temperature Sensor,Illuminx,HP-HC162" /> Easily installs in minutes to most faucets. Universal adapters included. Water glows RED when water is HOT (above 40 degree Celsius, 104 degrees Faranheit) Water glows BLUE when water is COLD. LED will illuminate the streaming water from the faucet with a soothing powerful hue.