Price:Negotiable

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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 according to the teperature of water;
Green: Water tempratures below 32 degrees;
Blue: Water tempratures between 32-38 degrees; Red: Water tempratures between 39-45 degrees; Red alarm: Water tempratures above 45 dgrees;