Causes of poor dispersion of LED smart street lights

At present, the quality of solar LED smart street lights on the market is uneven, and LED smart street lights in many places will not light up tomorrow. In the final analysis, the reason for this phenomenon is the poor heat dissipation function of LED smart street lights. When the heat dissipation function is poor, the internal temperature of the LED lamp will be too high. When the temperature of the LED increases, its junction resistance decreases, resulting in a decrease in the turn-on voltage. What are the reasons for the poor heat dissipation of LED smart street lamps? Under the same voltage conditions, the increase in the internal temperature of the LED lamps will promote the increase of the LED current. The increase of the current will further increase the temperature, which will lead to the evil cycle which will burn the LED chip. Moreover, the internal temperature of the LED smart street lamp is too high, which intensifies the light decay of the LED chip, which will cause the phenomenon of bright but not bright in the near future. So what is the reason for the poor heat dissipation function of solar LED smart street lights?

　　 One, the quality of the LED smart street lamp itself

　　 The selected LED chip has poor thermal conductivity, and the temperature of the LED die cannot be transferred to the surface (internal heat and external cooling). Even if a radiator is added, the internal heat cannot be emitted. Secondly, some LED smart street lights are inside. No radiator.

　　 2. Temperature rise caused by LED smart street light power supply

　　 The power quality of the LED smart street lamp is not good. When the LED is turned on, the nonlinearity of the power supply and the weak change of the power supply will cause the current through the LED chip to increase, and then cause the internal temperature to be too high, which affects the heat dissipation function of the LED smart street lamp .

　　 What we need to pay attention to is that we want LED smart street lights to have a long service life. When purchasing, try to choose reliable solar LED smart street lamp manufacturers, and always pay attention to punctual maintenance, so as to ensure the stability of LED smart street lights .