his product has mini built-in generating electricity devices, no need of batteries, as long as the water flows it will give out light, turn off the water, the light goes out immediately. The colour changes according to the water temperature.
The light colour is blue when the water temperature is below 32 degrees. The right shows green when the water temperature is between 33 to 41 degrees. When the water temperature is between 42 to 45 degrees, it will display red. The light flashes red when the water temperature is higher than 46 degrees.
The product has an excellent water conservation function and is connected at the top with the water-saving filter.
The product is an externally threaded connector with an internally threaded adapter. The adapter can make the product suitable for a variety of faucet interfaces.
LED emitting color: Green, Red & Blue .Internal diameter: 0.6 inch. External thread diameter: 0.86 inch. Item size: 1.4*0.95*0.95 inch