1.View the specification of the products you need to purchase. Choose the right one, not the bigger one.

2.Visit the factories in Bulk Purchasing.

3.Buy a sample from the supplier before place an order.

4.Do not choose suppliers only by price, pay attention to the sustainability.

5.OEM seems good, you can choose suppliers who provide OEM service.

6.Choose suppliers who has the following certificates: UL, ROHS, CE, CDE, CSA, FCC.