How to distinguish the quality of LED patch light strip?

LED strip has a low entry barrier for production, so many people run this project. As an experienced person, there is still a way to distinguish LED strip from others. The LED strips and fake LED strips produced by ordinary manufacturers can be seen at a glance. Let's talk about how to visually identify the quality of LED strip.

1. Soldering point: LED strip produced by a regular LED strip manufacturer, produced by SMT, solder paste and reflow soldering. Therefore, the solder joint on the LED lamp strip is smooth, and the amount of solder is not large, and the solder joint extends from the FPC pad to the LED electrode in an arc shape. However, the amount of solder in the LED strip solder joint of the cottage version is uneven, most of the solder joints are covered with a point, and there are different degrees of tin tips at the same time, which is a typical manual welding phenomenon.

Second, the quality standard of FPC: FPC is divided into two types: copper-clad and copper-rolled. Copper-plated copper foil is convex. If you look carefully, you can see it from the joint between the mat and FPC. Calendered copper is closely combined with FPC, which can be bent at will without dropping the pad. If the copper clad laminate is bent too much, the pad will fall off and the temperature will be too high during maintenance.

Third, the cleanliness of LED strip's surface: If LED strip produced by SMT technology is used, its surface cleanliness is very good, and no impurities and stains can be seen. However, if it is hand-welded and produced in LED strip, no matter how it is cleaned, there will be stains and traces of cleaning, and there will be flux and tin slag on the FPC surface.

4. Packaging requirements: The conventional LED strip will be packaged with anti-static reels, usually 5 meters or 10 meters, and then the outside will be sealed with anti-static and moisture-proof packaging bags. However, the fake version of LED strip will use recycling reels to save costs, and then there is no anti-static and moisture-proof packaging bag. If you look at the scroll carefully, you can see the marks and scratches left when the label is removed.

This belongs to Baidu. And/s/blog _ 711f8ee30100q2od. Sina's HTMLLED lamp. Now they have entered every household. Because of the popularity of LED lights, LED lights are sold in many places, but because of our usual needs, many inferior LED lights have also been born. But there are many experienced friends who can tell the difference between the LED lamps produced by regular manufacturers and the fake ones. You can tell at a glance from the appearance. According to the experience in the building materials market, the following Nanfeng Building Materials Xiaobian tells you how to identify the quality of LED strip with your eyes: First, look at the packaging. Regular LED strip will be packed with antistatic reels, usually 5 meters or 10 meters, and then the outside will be sealed with antistatic and moisture-proof packaging bags. However, the fake version of LED strip will use recycling reels to save costs, and then there is no anti-static and moisture-proof packaging bag. If you look at the scroll carefully, you can see the marks and scratches left when the label is removed. Second, look at the label. Conventional LED strip packaging bags and reels will have printed labels instead of printed labels. The label of the shanzhai version is printed, and the specifications and parameters are not uniform. Third, look at the attachment. Regular LED strip will attach instructions and specifications for the use of light strips in the box, and will also be equipped with LED strip connectors or card holders; These accessories can't be found in the fake version of the box in LED strip, because they can save money. Fourth, look at the solder joints. LED strip produced by a regular LED strip manufacturer is produced by SMT, solder paste and reflow soldering. Therefore, the solder joint on the LED lamp strip is smooth, and the amount of solder is not large, and the solder joint extends from the FPC pad to the LED electrode in an arc shape. However, the amount of solder in the LED strip solder joint of the cottage version is uneven, most of the solder joints are covered with a point, and there are different degrees of tin tips at the same time, which is a typical manual welding phenomenon. Fifth, look at the quality of FPC. FPC is divided into two types: copper clad copper and rolled copper. The copper foil coated with copper is prominent. If you look carefully, you can see it from the connection between the pad and FPC. Calendered copper is closely combined with FPC, which can be bent at will without dropping the pad. If the copper clad laminate is bent too much, the pad will fall off and the temperature will be too high during maintenance. Sixth, look at the cleanliness of LED strip's surface. If LED strip is produced by SMT process, its surface cleanliness is very good, and no impurities and stains can be seen. However, if it is hand-welded and produced in LED strip, no matter how it is cleaned, there will be stains and traces of cleaning, and there will be flux and tin slag on the FPC surface.