What needs to be identified before buying is the buyer's credit problem.

I won't be too verbose.

Get it and identify it.

Take a look: the solder joints of the lamp cup are regular and uniform. Authentic automatic welding, commonly known as "fish scale welding", is dense and uniform. Shanzhai is generally a manual workshop, commonly known as "chicken shit welding" in the industry.

The second is to identify the brightness: the brightness of the cottage and the discharge time of the battery will inevitably not reach the nominal brightness and time of the official data.

Third, look at the details of the handle, such as knurling, eyes cocked up carefully, the accuracy of the mold and machine tool in the cottage and the genuine CNC automatic processing.

The details vary greatly.

Ultimate identification skills:

Check the data of this flashlight in official website, and there is a "quality" in it. It's the weight of the flashlight. Because of the materials and other reasons, the weight of the knockoffs is quite different from that of the original American products. The accuracy of electronic scales for weighing candy in general supermarket chains is enough to distinguish.