The great writer Hugo once said that "the sewer is the conscience of the city". Although the original intention may have nothing to do with whether the drainage system is efficient, the sewer issue will always become a concern during the rainy season. Similarly, for lamps, heat dissipation is the most easily overlooked conscience.

The quality of the heat dissipation performance of lamps greatly affects people's judgment of the "quality" of lamps to a certain extent. If the heat dissipation performance is not ideal, then during the operation, the heat energy accumulated in the lamp body cannot be evacuated in time, thereby damaging the chip and even the components, causing the light source to decay and the entire lamp to be damaged in advance.

So, how do lamps dissipate heat? What are the factors that affect the heat dissipation function of lamps?

Have you noticed that LED lamps have a feature: there is often a heat sink at the back of the lamp body. Its existence can effectively reduce the cavity temperature in the lamp and prevent the light source from aging prematurely due to long-term high-temperature operation.

What factors affect the heat dissipation of lamps?

1. Radiator material

The thermal conductivity of each material has a certain difference. This difference is called thermal conductivity. The higher the thermal conductivity of the material, the better its thermal conductivity.

At present, the materials used in LED lamps are extruded aluminum and die-cast aluminum.

2. Heat transfer path

In addition to being able to quickly transfer heat from the heat source to the surface of the heat sink, any heat sink mainly relies on convection and radiation.

3. Heat dissipation area

The heat dissipation performance is also closely related to the heat dissipation area. The larger the heat dissipation area, the better the heat dissipation.

4. Ambient environment

Take LED lamps as an example. Under normal circumstances, they can work in an environment of -20℃-40℃. However, their performance will be affected by the ambient temperature. If the node temperature is too high, the LED performance will decrease, so the heat dissipation design is very important.

Heat dissipation performance directly affects the service life of the lamp, especially for LED lamps with "high cold" properties, because the inner core is very "afraid of heat", so when choosing and purchasing, you should pay attention to its heat dissipation function.

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