1.Q： Leading time for order?
A：1-3 days for sample order, 5-10 days for bulk order
2.Q： Shipment information?
A：Sample is shipped by UPS, DHL. Fedex,etc, takes 3-5 days.
Bulk order can be shipped by air or by sea.
3.Q： What's your MOQ?
A：Without logo: No MOQ limit
With logo: 300pcs.
4. Q：For Amazon seller.
A：We can ship to amazon warehouse directly, only need offer us Amazon lables, will handle all things.
5. Q：What is your diffuser warranty?
A：18 months warranty, longer than most of factories in China
6. Q：What is your defective rate?
A：We are offering full inspection, and our defective rate under 0.1%
7.Q： How to do if there is diffuser broken?
A：Just send us video or photos, will make replacement in your next shipment.
8.Q： OEM Service
A：Customization on diffuser and package box.
9. Q：What kind of Power adapter you can offer?
A：UK, Australia, European and American power adapters are available.