How to identify the advantages and disadvantages of LED display lamp?
First, see solder joints. Regular LED light strips are produced by the manufacturer using LED SMD technology, using solder paste and reflow soldering process
Second, look at the FPC quality. FPC is divided into copper and rolled copper. The copper foil of the copper is protruding. If you look closely, it can be seen from the joint between the pad and the FPC.
Third, look at the cleanliness of the LED light strip surface. If the LED light strips produced by the SMT process are used, the surface cleanliness is very good and you can't see any impurities or stains.
Fourth, look at the LED light chips and production processes, with the eyes can not see the difference between the use of aging equipment and testing equipment if you put a few manufacturers of LED aging instrument with a large current aging 24 hours or longer Time, you go to measure the brightness of several manufacturers of LEDs, to see that LED luminous intensity attenuation is the smallest, the smallest attenuation of the best quality.
