Occasionally, led street lamps cannot be illuminated after installation. Once this happens, it is called a death lamp. Such lights do not provide illumination function properly, so the cause of the death lights must be determined and resolved.

There are two main reasons for the dead light to go out.

1. The leakage of led street light is large, the PN junction is destroyed, and the street light is not bright, which does not affect the operation of other led lights.

2. The internal connection lead of led street lamp is disconnected, and there is no current flowing through the led, which will produce dead zone lamp. This situation will affect the normal operation of other led lamps.

Measures to solve the death of led street lamp:

In the led packaging production line, the ground resistance of various equipment is also very important to meet the requirements, the general requirements of the ground resistance is 4 ohms, the requirements in the case of high requirements to achieve the ground resistance and even 2 ohms. Welding temperature is too high will cause led dead zone phenomenon, led lead expansion coefficient at high temperature is about 160 expansion coefficient of several times, the internal gold wire welding disc is also due to excessive thermal expansion and contraction and open the solder joint, causing dead zone phenomenon. Therefore, when facing this situation, please make sure to check whether the various kits meet the requirements of the street lamp and whether the installation method is correct.

Therefore, in order to avoid the phenomenon of led street lamps dead light, first of all, when buying street lamps, we should pay attention to whether the street lamps we buy meet the benchmark, and whether the supporting parts are normal. Next, when setting up, we should set and check in the correct way to further increase the possibility of dead lights.