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Three Major Three Misunderstanding in LED Cooling

2019/05/25

In LED luminaires, the quality of heat dissipation is directly related to the quality and longevity of the product. However, because of the hype of some merchants and the misinformation of so-called experts, there have been some misunderstandings.

1. Superstition thermal material

Because of the high-tech materials used, the heat can be dissipated. Its practical ordinary aluminum heat dissipation, after repeated tests, the temperature of the heat sink is only 3-5 degrees Celsius higher than the bottom of the radiator. That is to say, if a material with excellent thermal conductivity can be used, the temperature can be lowered by 3-5 degrees Celsius when the thermal resistance is zero.

2. Superstition heat pipe

The heat pipe has a good thermal conductivity, which is beyond doubt. But the heat that is derived from the heat sink eventually needs to go tropical through air convection. If there are no fins that dissipate heat, the heat pipe will soon reach thermal equilibrium and the temperature will rise with the heat sink. If you add heat sink fins to the heat pipe, you will eventually use fins to dissipate heat. Moreover, the contact points of the fins and the heat pipes are not as good as other ways. The result is a high cost and no improvement in heat dissipation. However, it is useful to use heat pipes on integrated LEDs, but it must be structurally sound!

3. Superstitious nano-radiation materials

Radiation heat dissipation is negligible in the current temperature of the lamp at around 50 degrees Celsius. The radiation coatings promoted by the manufacturers, even if they have a good radiation effect as advertised, even if they reach the radiation capacity of blackbody radiation, their heat dissipation is only a few percent. How is this meaning still to be considered! Moreover, the coating itself hinders the heat transfer, which affects the heat dissipation of the convection.

Yiwu Fuwei e-commerce firm (IACS Co., Limited) is a very professional Led manufacturer who produces high quality outdoor led light. Our popular products are solar led lights, UFO lights, underwater lights and so on. If you have any question about the led product, please feel free to contact us.