The main reason is that led chips are not hot. It doesn't matter if the temperature is more than 100 degrees in a short time. It's a great damage to the LED chip if it's afraid of being under high temperature for a long time.
Generally speaking, the thermal conductivity of ordinary epoxy resin is very small. Therefore, when the LED chip lights up, the LED chip will emit heat, while the thermal conductivity of ordinary epoxy resin is limited. Therefore, when you measure the temperature of the LED bracket from the outside of the LED white light to 45 degrees, the chip center temperature in the LED white light may exceed 80 degrees. The temperature node of LED is actually 80 degrees, so when the LED chip works in the temperature saving temperature, it is very suffering, which speeds up the aging of LED white light.
When the LED chip is working, the center temperature produces a high temperature of 100 degrees. It can immediately guide out 98% of the heat through the pin of the bracket, so as to reduce the heat damage to it. Therefore, when the temperature of the LED white light bracket is 60 degrees, the chip center temperature may be only 61 degrees.
From the above data, it can be seen that what kind of packaging process is selected for the LED white light, which directly determines the light attenuation of the LED lamp.
