We all know that the quality of the LED drive power supply will affect the service life of the LED lamp, then, what factors affect the service life of the LED drive power supply? The performance that affects the life of the LED drive power supply mainly includes: environmental characteristics, component characteristics and electrical characteristics.
It is manifested in the following aspects:
1, high humidity environment, high temperature environment, dusty environment, strong magnetic environment, vibration environment, will have an impact on the service life of LED driving power supply.
2. The voltage input of the unstable power grid will impact the components of the LED power supply, thus affecting the service life of the LED drive.
3. A capacitor input rectifier loop is arranged inside the LED driving power supply. When it is connected to the power supply, the inrush current will produce an impact on the devices inside the power supply, thus affecting the service life of the LED driving power supply.
4, the correct installation of the product and good insulation will enhance the vitality of the LED power supply.
5. The internal temperature of the lamp is less than 65 degrees, the shell of the lamp is less than 75 degrees, and the temperature of the power supply is less than 60 degrees. Because not only the power supply itself will heat, the lamp will also heat, how to reasonably emit these two heat sources is the lamp design engineer must consider the problem, must prevent excessive concentration of heat, the formation of heat island effect, affect the life of the power supply.
6, when the internal temperature of the electrolytic capacitor becomes high, the sealing part of the electrolytic capacitor will leak out the gasification electrolyte, this phenomenon will accelerate with the rise of temperature, it is generally believed that every 10℃ rise in temperature, the leakage rate will increase to 2 times, that is to say, its life will be shortened 2 times. Therefore, it can be said that the electrolytic capacitor determines the life of the LED drive power supply.