Free Shipping super bright 3 Color Automatic Change LED Bathroom Shower No battery self-powered led shower head CE/ROHS
1. water flow electricity generation, when the water flows, you will see the LED gives out color light, no need of battery, inside the shower head there is a electric generator. it provide the power for LED light to shine.
2. 3 colors for you choose. the color chages by the water temperature. it changes as following:
_ water temperature is below 31°C, it shows green
_ water temperature is 32--38°C, it shows blue color light
_ water temperature is 39--45°C, it shows red
_when water temperature is more than 46°C, the red light flicking will remind you being careful with the hot water. be careful or you will be hurt.