Parallel imports, also known as fakes, appear more and more frequently in our lives. Not only mobile phones, clothes, but also power supplies have also appeared in so-called fakes. Power supplies are very important in our daily life. Unlike ordinary products, they do not pose a threat to life. So, how should you identify the authenticity of a power supply? Today I will take MEAN WELL Power as an example and use three methods to teach you how to identify the authenticity of a power supply, so that you can choose a good power supply with confidence.
Regarding how to identify the authenticity of MEAN WELL power supplies, I will introduce to you the following three methods!
Method 1:
In fact, the method is very simple , you can use the following aspects to identify the authenticity of Mingwei.
1. The brand name of the genuine Taiwan MEAN WELL switching power supply (MW) is MEAN WELL. Other brands with the same pronunciation but different words are counterfeit brands, such as Ming Wei, Ming Wei, Ming Wei, etc.
2. Taiwan MEAN WELL Power Supply has a steel-stamped MW logo engraved in the middle of the power supply body.
3. There will be a white coding strip on the body of the Taiwan MEAN WELL power supply. There is a code with a combination of letters and numbers starting with the letters D/E/R/H. Please pay more attention to it.
4. If you are deceived, you can go to (Shenzhen MEAN WELL Power Supply Co., Ltd. or this site) to ensure the authenticity.
Method 2:
The real MEAN WELL power supply is very exquisite in workmanship, while the generally marginal brand power supply basically has the same design, because these power supplies are not Winning the market depends on quality, but on price, so generally speaking, these power supplies are simplifying the design. To put it bluntly, they are doing everything possible to save components.
Method 3:
1. Distinguish between true and false MEAN WELL switching power supplies:
2. Use MEAN WELL switching power supplies (Shenzhen MEAN WELL Power Supply Co., Ltd. ) as an example to identify genuine and fake MEAN WELL switching power supplies,
3. Look at the "MW" trademark. In addition to the power supply model label, there are three places with the MEAN WELL trademark printed on it.
4. Shell , Stampede
5. Switching transformer
6. Fake Meanwell power supplies do not have the MEAN WELL trademark on the three places above the PCB board.
7. Look at the product sequence No., the MEAN WELL switching power supply (with shell specifications) has a serial number affixed to the shell and switching transformer, and the first two Arabic digits of the two serial numbers are consistent! Most of the fake MEAN WELL power supplies only have a serial number on the shell, or two The serial numbers are inconsistent!
The above two points can intuitively distinguish the authenticity. The counterfeit MEAN WELL power supplies have poor workmanship and uneven quality of components used. Most of them are disassembled parts and have not been fully tested before leaving the factory. And inspection, short service life will cause unnecessary losses to customers.
Taiwan MEAN WELL passed ISO9001 certification in 1994. Most of the products produced have passed UL, TUV, CE, 3C certification and are sold all over the world. To prevent counterfeiting, please identify carefully when purchasing!
Please pay attention to the LOGO. The brand of Meanwell is MW meanwell. The label indicates MW and Meanwell. In addition, the LOGO of MW is basically stamped on the casing. There is also the LOGO of MW on the PCB. If it is a high imitation version, it is usually on the casing. There will be no LOGO, and there will be no LOGO on the PCB and transformer.
There are too many fake MEAN WELL switching power supplies on the market. In addition to different origins, the prices are also ranging from high to low. There are three or four fake Mean Well brands that we know of, which brings a lot of trouble to us consumers, because in order to reduce costs, we have to shop around for fear of encountering fake Mean Well!
Once there is a problem with the power supply, it may cause minor problems such as electric shock, or may cause a fire and threaten lives. Therefore, the correct selection of the power supply is crucial. Through the introduction of the above three methods, have you learned something about them? Teaching you how to identify the authenticity of the power supply is only one step, and regular replacement is also necessary. Correctly learn how to identify the authenticity of a power supply. I would like to remind you: Don’t let petty gain threaten your life.