Turn on the fun in your shower just by turning on the water—no Battery Needed, Water pressure to create energy to light the LED lights. LED lights will automatically light up and set the mood Changes colors automatically based on the water temperature with no batteries. Standard size connection 1/2" Self-powered by a built-in dynamo that takes advantage of the water Ten-year manufacturer warranty for Shower Head, and a two-year warranty for LED lights Turn on the fun in your shower just by turning on the water; the LED lights will automatically light up and set the mood. They will even change colors automatically based on the water temperature Water-powered, no batteries needed — see our LED Lights for Shower Head All this with no batteries, everything is self-powered by a built-in dynamo that takes advantage of the water pressure to create the energy to light the bulbs. Auto Temperature Detected Light Color Change! The shower head will automatically change colors according to the temperature of the water. So you always know how the water will feel on your skin just by looking at it. When the water temperature is ≤90F, the green color will show automatically When the water temperature is between 91°F and 105°F, the blue color will show automatically When the water temperature is between 106°F and 113°F, the red color will show automatically When the water temperature is above 115F, the red color will flash immediately Never be scalded again by entering a shower that is just too hot! LED light color changes properly only when the water pressure is enough and steady 1. Product Features High-quality overhead shower head with built-in LED light LED light is activated when the Shower head senses water flow No batteries are needed Style: Contemporary Shower Head Material: Heavy Duty Brass Shower Head: Rainfall Installation: Ceiling-Mounted -1/2" standard connector 2. Package includes 16"x31" LED Overhead Shower Head 4x Ceiling Mount Shower Arm LED lights are consumable parts. They usually last between 8 and 16 months (based on use). We sell spare LED lights only to customers who bought the system from us through Amazon. They can be replaced by unscrewing the back of the shower head and putting them inside. Technical Details Manufacturer Part Number (MPN): CSBD010-131 Item Weight: 18 pounds Product Dimensions : 31 x 0.3 x 16 inches Size: 16"x31" Material: Stainless Steel Shape: Rectangular Power Source: Hydraulic-Powered Installation Method: Screw-In Flow Rate: 3.7 GPM Type of Bulb: LED Inside Diameter: 1/2" standard connector inches Plug Profile: Ceiling Certification: ADA Compliant, cUPC Included Components: Arms Batteries Included? No Batteries Required? No Make it a complete set: Pair this with a Double Function Shower System or a Luxury Thermostatic Shower System.