Safety and Environmental Protection - No electricity, No battery; Powered by water flow Temperature Controlled LED Lights (Blue Green Red) 3 Colors Change (FOLLOWING TEMPERATURE TO CHANGE COLORS) Brass Faucet Body Ensures Quality and Longevity Modern Waterfall Design. It Is Fairly Trendy and Helps You to Save More Water. 5 Years Warranty, LED Part is 1 Year, Installation Instructions Include Easy Installation, Cold / Hot Switch: Yes Flow Rate: 2.0GPM LED Information: LED Power Source: Waterflow (Water pressure > 29Psi or 2.0Bar); LED Color: Blue,Green,Red; When water temperature is ≤90F, Green color will show automatically; When water temperature is between 91F~105F, Blue color will show automatically; When water temperature is between 106F~113F, Red color will show automatically; When water temperature is above 115F, Red color will flash immediately. Important Note: LED power source is from water flow and water pressure requirement: more than 29Psi; Technical Details Manufacturer Part Number (MPN) : CSLPT1946 Item Weight : 9.7 pounds Product Dimensions : 18.9 x 10.6 x 6.7 inches Item model number : HDD7461 Color : HDD7461 Style : Contemporary Finish : Polished Material : Stainless Steel Power Source : Hydraulic-Powered Number Of Holes : 1 Number of Handles : 2 Batteries Included? No Batteries Required? No