Why does the LED street light have dead lights? How to solve?
In the process of using LED street lights, many people have encountered the phenomenon of dead lights. Why does the phenomenon of dead lights occur in the process of using LED street lights? What are the corresponding solutions?
Why do LED street lights have dead lights? There are two main reasons for the storage of LED street lights: the LED leakage current is too large, which causes the failure of the PN junction and causes the LED street lights to not light up. With the rapid growth of the national economy, the contradiction between my country's energy supply and demand has become increasingly prominent. There is a serious shortage of power supply, and energy conservation is an urgent problem to be solved. Therefore, the development of a new type of high-efficiency, energy-saving, long-life, high color rendering index, environmentally friendly LED street lamps is of great significance to the energy saving of urban lighting. The difference between LED street lamp manufacturers and conventional street lamps is that the LED light source adopts low-voltage DC power supply, and is a high-efficiency white light synthesized by GaN-based power blue LED and yellow. It has high efficiency, safety, energy saving, environmental protection, long life, fast response speed, and display. Unique advantages such as high color index can be widely used on roads. The outer cover can be made, the high temperature resistance can reach 135 degrees, and the low temperature resistance can reach -45 degrees. This situation generally does not affect the operation of other LED lights. The internal connection lead of the LED street light is disconnected, and no current flows through the LED and causes a dead light. This situation will affect the normal operation of other LED lights.
How to solve the dead light problem of LED street lights?
In the LED packaging production line, whether the grounding resistance of various equipment meets the requirements is also very important. The grounding resistance is generally required to be 4 ohms, and the grounding resistance of some high requirements should be ≤ 2 ohms. Excessive soldering temperature can also cause LED dead light phenomenon. The expansion coefficient of LED leads at high temperatures is several times that of 160°C. The internal gold wire solder joints will also be pulled apart due to excessive thermal expansion and cold shrinkage, resulting in blind corners of the lamp.
The above is about the LED street lamp dead light phenomenon and related solutions. If you have any questions, please call for consultation. We will update you with more relevant instructions. You can follow our website for more relevant instructions.
