led line light production because of the low threshold into this project, many enterprises. But experienced people still have a way to identify, regular manufacturers of led line lights and copycat version of led line lights can be seen from the appearance. The following describes how to identify the quality of led line lights by eyes.
① Look at the solder joint. LED hard track lamps produced by regular manufacturers use the patch process, using solder paste and reflow process to produce. Therefore, the solder joint on the LED hard track lamp is smooth, and the solder paste will not be much, the solder joint is arc shaped and extends from the FPC pad to the LED electrode. And the copycat version of LED hard track lamp solder spot is not uniform, more than a dot to cover the welding foot, at the same time there will be different degrees of tin tip, this is a typical phenomenon of manual welding.
② Look at the quality of FPC. FPC is divided into two kinds of copper and calendered copper. The copper foil of the copper plate is protruding. If you look closely, you can see from the joint of the welding pad and FPC. The calendered copper is closely connected with the FPC as a whole, can be bent without the phenomenon of pad shedding. If the copper plate is bent too much, the pad will fall off. When maintenance is over high, the pad will fall off.
③ Look at the cleanliness of the surface. The surface cleanliness of the LED hard track lamp produced by the patch process is very high, and no impurities and stains can be seen. However, no matter how the surface of the counterfeit version of LED hard track lamp produced by hand welding process is cleaned, there will be traces of fouling and cleaning, and flux and tin residue on the surface of FPC.
Look at the package. Regular led line lights will use anti-static coil packaging, generally 5m a roll or 10m a roll, and then the outside is sealed with anti-static moisture-proof bag. The copycat version of LED hard track lights will use recycled coil tray in order to save costs, without the use of anti-static moisture-proof packaging bag, carefully look at the coil tray can see the appearance of the marks and scratches left by the removal of labels.
⑤ Look at the label. Regular led line light packaging bags and coil trays will have printed labels, rather than printed labels. But the copycat version of the label is printed, and the specifications and parameters are not uniform.
⑥ Look at the attachment. Regular led line lights will be attached in the packaging box with instructions and specifications, but also equipped with led line lights connector or booth.
