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.