Factors [price] waterproof fan have?

　　1. material costs (IC bearing plastic materials such as copper)

　　A miniature fan speed IC partakers, B stalls, C files, D stalls, these Calvary IC grade appearance is exactly the same, but there are differences in accuracy, sensor sensitivity is not the same, low sensitivity of IC will be dead, poor induction and other phenomena)

　　Miniature fan bearings there are many, are generally pressed powder with copper, oil is good, there are some cheap bearings, not some iron-containing copper, or aluminum or something

　　Miniature fan PBT plastic material is generally used, the temperature, good toughness, but there are some with secondary materials, three materials, the performance of these materials recycled and sent some Waterproof fan

　　Miniature fans have heard of copper wire with copper clad aluminum, relatively low cost, but high water temperature will fan

　　2. is the cost of the brand

　　Every business is not the same way they do business, some are relying on sales to push their own products, some are relying on ads, it is easy to make out a good brand, the brand is good, and the price will be higher selling, these plants will costs are added to the inside