1、As the built-in device generating electricity without the battery and any other power connets to water, LED will emit the light.

2、 When water flows down, the LED will light instantly anautomatically;

A、When water temperature is ≤32℃,Green color will show automatically ;

B、When water temperature is between 33℃-41℃,Blue color will show automatically;

C、When water temperature is between 42℃-45℃,Red color will show automatically;

D、When water temperature is above 46℃,Red color will flash immediately.

3. This item will change its color by detecting water temperature.

Q: Do you have any MOQ?
A: Yes, MOQ is 100 pcs.

Q: What is the lead time?
A: I will ship out immediately if we have a stock, most of items need 3-5 working days.

Q: Will it come with the retail box?
A: Yes, we will send it with the retail box.

Q: When can I get the tracking number?

A: I will let you know at the first time after shipping out.

Q: How long is warranty for items
A: 1 year.

Q: Could you print LOGO for items?

A: Sure, I can help you print LOGO as your request.

Q: Can we get the sample to check before place large quantity?
A: Sure, sample is available.

Q: How to order?
A: Tell me the Items model and quantity you order. I will make the Proforma Invoice for you.
     And will arrange the items after getting your payment. 

Q: Which will be the cheaper shipping cost?
A: The shipping cost we quote for you is the cheaper one. But the delivery method is up to you.