Look at the cleanliness of the surface of the LED strip. If the SMT process production of LED lamp belt, its surface cleanliness is very good, do not see what impurities and stains. However, if the copycat LED lamp strip produced by hand welding process is adopted, its surface will remain stains and cleaning traces no matter how it is cleaned. At the same time, it will help solder flux and tin residue remain on the surface of FPC. Look at the packing. The regular LED lamp belt will use anti-static coil packaging, usually 5 meters a roll or 10 meters a roll, and then the outside of the anti-static moisture-proof packaging bag seal.

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