1. 3 Colors Change With Water Temperature: The integrated temperature sensor in the LED shower head lets you know the water temperature while showering. Blue: Cold water below 31°C; Purple: Water between 32-38°C; Red: Water between 39-45°C. Flashing Red: Water above 45°C. 2. No batteries or other power sources required: LEDs are powered by tap water, which is energy efficient and environmentally friendly. 3. Chromed ABS plastic: Has resistance to corrosion, with no lighting color change. Easy to clean. 4. Installation: Compatible with 2 GPM/1 GPM, and can be connected to any standard shower accessory in minutes without tools. 5. Safe to use: This square shower has passed CE/RoHS/EMC/PAH certification and LED lifespan is up to 6000 hours. 6. Product Description: Handheld Shower Head Temperature Control Square LED 8 Inch 3 Color Fading. No power required, as long as there is water flow to emit light; the light turns off without water flow, and the light color changes with water temperature. By visually observing the changing water color, you can understand the water temperature more intuitively without frequently adjusting the water valve. This shower is hydro powered, with the water pipe separate. It uses a soft glue nozzle, which is strong and not easy to block, and a cleaning ball integrated in the shower head to avoid condensation inside. When the water temperature is below 32°C, it turns blue; 32-38°C, displays pink; 39-45°C, appears red; above 45°C, red light flashes to remind you of possible burning. 7. Specification: Color: 3 Colors Square; Surface Treatment: Electroplating; Material: ABS Technopolymer; LED Color: Blue, Pink, Red; Product Size: 200mm*200mm*15mm; Interface Size: 20mm Internal Thread (Common Interface). 8. Features: 1. Head to toe fancy LEDs. 2. When the faucet senses water flow, the LED lights up. 3. LED color changes with water temperature. 4. When the water temperature is 31°C, the indicator automatically turns blue. 5. When the water temperature is 32-38°C, the light automatically turns purple. 6. When the water temperature is between 39 and 45°C, it automatically turns red. 7. When the water temperature exceeds 45°C, red flashes automatically to warn that the water temperature is too high. 8. No battery required. 9. Easy to install and disassemble. 10. Ideal for beautifying the bathroom. 9. How To Install: 1. Screw the connector firmly into the shower head. 2. Screw the other side of the connector to a standard 1/2 inch pipe. 3. Connect to the suspension arm (extensions are not included). 4. It can be hung up to the ceiling mount. 10. Note: Due to different monitors and lighting environments, the actual color may be slightly different from the picture; please understand. Please allow a slight deviation (±1cm) from the manual measurement data.