What Are the Reasons That Affect the Light Decay of LED Point Light Source Modules

The data detected by a single LED white lamp on the aging board and the data detected when the LED dot light source module is assembled into a lamp aging. The size of this difference depends on the electrical parameters and the design of the lamps during LED work, as well as the environment used by the lamps. First of all, what kind of LED lamp beads choose. This is very important. The quality of LED lamp beads can be said to be very important factor. For example, the same is represented by the chip of the chip of the chip 14mil, and the LED lamp beads encapsulated by the bottom gum and white glue and packaging glue made of ordinary epoxy resin, which lit a single one in an environment of 30 degrees. After thousands of hours, the attenuated data is 70%of the optical decay; if the D type D low -decaying glue is encapsulated, in the same aging environment, the 1,000 -hour light decay is 45%; , 1,000-hour light decay is 12%; if category B is encapsulated in low-decreased glue, in the same aging environment, thousands of hours of light decay of -3%; if Class A is low-declining glue, in the same aging environment, thousands of hours of light in the same aging environment, thousands of hours of light in the same aging environment, thousands of hours of light in the same aging environment, thousands of hours of light in the same aging environment, thousands of hours of light for thousands of hours of light. What is the difference between a different packaging process? The main reason is that the LED chip is afraid of heat. Occasionally heated more than 100 degrees in a short time, it is not tight, I am afraid that it will be at high temperature for a long time, which is a great damage to the LED chip. Generally speaking, the thermal conductivity of ordinary epoxy resins is small. Therefore, when LED chips are lit, LED chips should emit heat, and ordinary epoxy resin thermal conductivity is limited. When the temperature of the LED bracket is 45 degrees, the center temperature of the chip center in the LED white light may exceed 80 degrees. The temperature node of the LED is actually 80 degrees, so when the LED chip works at the temperature of the temperature, it is very suffering, which speeds up the aging of LED light sources. When the LED chip is working, the center temperature generates a high temperature of 100 degrees. It can immediately use the standing pin to the heat to reduce the heat, thereby reducing the damage to it. Therefore, when the temperature of the LED lamp beads is 60 degrees, the temperature of its chip center may be just 61 degrees. As can be seen from the above data, the LED lamp beads who choose what kind of packaging process are selected, and the light decision of the LED lamps directly determines the light decision of LED lamps. Second, the working environment temperature of LED point light source modules. According to the data of a single LED light source, if the LED light source has only one lighting work, and at the same time, the ambient temperature it is at 30 degrees, then the bracket temperature of a single LED light source does not exceed 45 degrees during the work of 45 degrees. At this time, the life of this LED will be ideal. If there are 100 LED dot -point light sources modules to light up at the same time, the interval between them is only 11.4mm, then the bracket temperature of the LED light source around the lamp pile may not exceed 45 degrees, but the middle of the lamp pile is Those LED light sources may reach 65 degrees high temperature. At this time, the LED light source is a test. Then, those LED light sources gathered in the middle will theoretically faster, and the LED light sources around the lamp pile will be slower. However, if the LED point light source module is more than 25mm apart, then the calories they divert will not accumulate so much. At this time, the temperature of each LED lamp bead bracket should be less than 50 degrees, which is more conducive to the normal LED normal of the LED. Work. If the environment of the LED work is in a relatively cold place, the average temperature of the whole year may be only about 15 degrees or smaller, then for LED, life span is longer.