How to detect the light decay of LED light panel and what measures to take to delay the light decay?
Publish Time: 2024-07-15
During the use of LED light panel, light decay is a common problem, which will affect its lighting effect and service life. Therefore, it is very important to detect the light decay and take measures to delay the light decay.
The light decay of LED light panel can usually be detected by integrating sphere test system. Put the LED light panel into the integrating sphere and measure its initial luminous flux, color temperature, color rendering index and other parameters by professional spectrum analysis instrument. After a certain period of use, the same test is carried out again. By comparing the data before and after, the degree of light decay can be obtained.
In addition, light decay can also be evaluated through long-term actual use observation. For example, under the same environmental conditions, record the lighting brightness and color changes of LED light panel in different time periods.
In order to delay the light decay of LED light panel, measures can be taken from multiple aspects. The first is heat dissipation optimization. Good heat dissipation design can effectively reduce the operating temperature of LED chip. High thermal conductivity materials can be used to make the light board substrate, increase the heat dissipation area, or install auxiliary heat dissipation devices such as cooling fans.
Reasonable drive current control is also very critical. Avoid excessive current passing through the LED chip, because overcurrent will cause the chip to heat up and accelerate light decay. Use a constant current drive power supply and set the appropriate current value according to the specifications of the LED chip.
Selecting high-quality LED chips and packaging materials can improve the light decay resistance of the light board from the source. High-quality chips have better performance and stability, while good packaging materials can provide better protection and heat dissipation.
In addition, during the use of the light board, frequent switching operations should be avoided, because instantaneous current shocks can also cause damage to the LED chip.
Also pay attention to the working environment of the LED light panel. Avoid using it in harsh environments such as high temperature, high humidity, and strong corrosiveness. These environmental factors will accelerate the aging and light decay of the light board.
In short, through scientific detection methods to timely understand the light decay of the LED light panel, and take effective measures such as heat dissipation, current control, material selection and optimization of the use environment, you can significantly delay light decay, extend the service life of the LED light panel, and maintain its good lighting performance.
