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 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 Stainless Steel Shower Head: Rainfall Installation: Ceiling-Mounted -1/2" standard connector 2. Package includes 20" x 40" LED Overhead Shower Head 4 x Ceiling Mount Shower Arm 2 x 20" Long Water Pipe 1 x T-joint Installation Screws Installation Manual 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. The affordable way to get a luxury shower feel — see our LED Lights for Shower Head Technical Details Manufacturer Part Number (MPN): CSBD011-132 Product Dimensions : 20 x 40 x 0.4 inches Size: 20"x40" Material: Stainless Steel Shape: Rectangle Flow Rate: 3.7 GPM Power Source: Hydraulic-Powered Installation Method: Screw-In 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 Complete your setup: Upgrade to a Double Function Shower System or a Luxury Thermostatic Shower System for a full installation.