Because of the low barriers to entry for the production of LED light strips, many people have started this project. However, experienced people still have a way to identify. The LED light strips produced by regular manufacturers and the copycat version of LED light strips (that is, products produced by manual operations in the rental house) can be seen from the appearance. from.
1. Look at the solder joints. The LED strips produced by regular LED strip manufacturers are produced using SMT patch technology, using solder paste (Lifeng) and reflow soldering (Lifeng M series/S series reflow soldering). Therefore, the solder joints on the LED strip are relatively smooth and the amount of solder is not too much. The solder joints extend from the FPC pad to the LED electrode in an arc shape. [The amount of solder in the solder joints of the fake version of the LED strip is uneven, mostly as a dot covering the solder foot, and there will be varying degrees of tin tips, which is a typical phenomenon of manual soldering.
2. Look at the quality of FPC. FPC is divided into two types: copper and rolled copper. The copper foil of the copper-clad board is protruding. If you look closely, it can be seen from the connection between the pad and the FPC. The rolled copper is closely connected to the FPC and can be bent at will without the phenomenon of pad falling off. If the copper-clad board is bent too much, the pad will fall off, and if the temperature is too high during maintenance, the pad will fall off.
3. Look at the cleanliness of the LED strip surface. If the LED light strip produced by SMT process is used, the cleanliness of the surface is very good, and no impurities and stains can be seen. However, if the counterfeit LED strip is produced by hand soldering process, no matter how it is cleaned, stains and cleaning marks will remain on the surface, and there will be flux and tin residue on the surface of the FPC.
4. Look at the packaging. Regular LED light strips will be packaged in anti-static coils, usually 5 meters per roll or 10 meters per roll, and then sealed with anti-static moisture-proof packaging bags on the outside. The counterfeit version of the LED light strip will use recycled reel for cost saving, and then there is no anti-static and moisture-proof packaging bag. If you look carefully at the reel, you can see that there are marks and scratches left by the removal of the label on the outside.
5. Look at the label. There will be printed labels on the regular LED light strip packaging bags and reels instead of printed labels. The copy of the label is printed, and the specifications and parameters are not uniform.
6. Look at the attachment. The regular LED light strips will be enclosed in the packaging box with instructions for use and light strip specifications, and will also be equipped with LED light strip connectors or card holders; while the cottage version of the LED light strip packaging box does not have these accessories, because Some manufacturers can still save while saving.
