Nowadays, there are many LED lamp bead manufacturers. How to choose a high-quality cooperative manufacturer? Many partners are hesitating. In fact, a good bead manufacturers will not only produce, but also solve some problems in the use of after-sales service is our biggest guarantee. Our led beads escort your use.

Now LED lamp bead quality is uneven, as long as the raw material is a little difference, quality and cost will be sent a lot, also LED lamp bead manufacturer of packaging technology also plays a big role, take the best material such as chip to make general factory, their quality also came, not because the process, so the quality of LED lamp bead, is not very stable, often appear dead light phenomenon. At present, the quality of LED beads is good: Focus, Riya, Osram, Tokusai, Toyoda Gosei, high-quality LED beads manufacturers, are basically in the United States, Japan and Taiwan, now the mainland packaging technology is still not very mature.

There are two main cases of LED bead dead light:

First, LED leakage caused by large PN junction failure, so that the LED lights do not light, this situation generally will not

Affect the work of other LED lights;

Second, the internal connection lead of LED light is disconnected, resulting in LED no current through and resulting in dead light, which will affect the normal operation of other LED lights. The reason is that the LED light working voltage is low (red, yellow and orange LED working voltage is 1.8V-2.2V, blue, green and white LED working voltage is 2.8-3.2V). Generally, it is necessary to use series and parallel connection to adapt to different working voltages. The more LED lights in series, the greater the impact, as long as one of the LED lights open the internal connection, will cause the whole LED lights of the series circuit is not bright, so this situation is more serious than the first situation.

LED dead light is the key to affect the quality and reliability of products. How to reduce and eliminate the dead light and improve the quality and reliability of products is the key problem that packaging and application enterprises need to solve.