Many people know about led lights, but they rarely touch LED lights, and they don't even know what it is. In fact, it is a kind of lamp strip that is decorated with a soldering process on a soft circuit board or a copper wire and connected to a power source to emit light. It is also famous in the lighting industry. The following is a brief description of how to buy LED Commercial Lightings strip , interested everyone can come together to understand!
First, look at solder joints
The regular LED lamp is produced by the manufacturer. The LED lamp strip produced by the manufacturer is produced by the SMT chip process using solder paste and reflow soldering process. The solder joints on the LED strips are smooth and the soldering amount is not much. The solder joints extend in an arc shape from the FPC pads to the LED electrodes. The cottage version of the LED light strip is different, its solder joint soldering amount is not uniform, with more than a dot to wrap the solder fillet, and there will be different degrees of tin tip, which is a typical phenomenon of manual soldering.
Second, look at the cleanliness of the surface of the LED light strip
If it is a cottage version of the LED lamp strip produced by the hand soldering process, no matter how the surface is cleaned, there will be traces of stains and cleaning, and there will be flux and tin residue on the surface of the FPC. If the LED strip produced by the SMT process is used, the surface is very clean and almost no impurities or stains are visible.
Third, look at the quality of FPC
FPC is generally divided into copper and rolled copper. The copper foil of the copper plate is convex. If you look closely, you can see it from the connection between the pad and the FPC. If the copper plate is bent too much, the pad will fall off. If the temperature is too high during maintenance, the pad will fall off. The rolled copper is closely integrated with the FPC and can be bent freely without peeling off the pad.
The above is about how to buy the related content of LED lights, I hope it to be helpful to everyone!
LED Panel Lights LED Ceiling Lights LED Downlights LED Downlight LED Spot Light