source:power adapter Popular:adapter release time:2021-09-16 09:50:53 Article author:sznbone
How to choose a switching power supply?
1. Clarify your needs.
Under normal circumstances, we only think about buying a switching power supply when the product we use fails. You can directly take the previous adapter to the corresponding store to buy. Basically, electronic products or repair shops will have this kind of switching power supply. The price ranges from tens of yuan to 100 yuan, which is not a very high price. And if you don’t know what type of switching power supply you have used before, then it is best to take the product you use to buy it at the store and try the switch. The switching power supply really meets our requirements before you buy it. This is also okay. avoid unnecessary trouble.
2. Choose the right brand.
There are many brands of switching power supplies, and their service life is relatively long. For example, a mobile phone power supply may be used several times a day. If its quality is not high, problems are prone to occur. I believe that everyone is more willing to buy high-quality products. Although the price of switching power supplies on the market is about tens of yuan, it is still difficult for us non-professionals to compare the pros and cons of products. So you must choose branded products. The products of big brands or big manufacturers are tested by authoritative departments, and the quality of their products is better. Although the unit price is slightly higher, there will not be much price difference, so it is more suitable for our choice.
3. Confirm after-sales service.
Switching power supply can basically be used for several years. Of course, this is only on the basis that the purchased product is a regular product can guarantee a long service life. But when we buy such products, it is best to confirm after-sales service with the merchant. If there is a problem within one month of use, the other party must also provide unconditional replacement of the new product or help us repair it. It is not recommended to choose non-branded Sanwu products, as the quality of such products is likely to have problems, and may even threaten our safety, and the products of merchants that can provide better after-sales service are also more quality-guaranteed.
Individuals must choose professional products to buy switching power supplies. The price of branded products is about twice as high, but such products are more worthy of our trust, their use effects are better, and they are more safe. Moreover, the price of high-quality products produced by some large manufacturers will not be much higher, and the effect of the products can be guaranteed, which is more worthy of our trust. If you want to wholesale this kind of products, you must choose a variety of models and wholesale the products through professional manufacturers, which will also ensure their quality.
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