1. No battery needed, electricity is generated by stream which is safe for body;

2. When water flows down, the LED will light instantly and automatically;

3. Brightness is enough even no other lighting fixtures needed.

4. The LED color will change gradually and automatically according to the teperature of water;
Green: Water tempratures below 32
degrees;
Blue: Water tempratures between 32-46 degrees;
Red: Water tempratures above 46 dgrees;

And we also design the parts according to the requirement of you.
Please contact us if you have the demand.