In led lamps, the quality of heat dissipation is directly related to the quality and life of the product. But because of the hype of some merchants and the misleading of so-called experts, some misunderstandings have emerged. See if you have been misled?

1. Superstition thermal material

Because high-tech materials are used to dissipate heat. Its practical and ordinary aluminum heat dissipation, after many tests, the temperature of the heat sink is only 3-5 degrees Celsius higher than the bottom of the radiator. In other words, if a material with excellent thermal conductivity is really used, the temperature can be reduced by 3-5 degrees Celsius when the thermal resistance is zero.

2. Superstition heat pipe

There is no doubt that the heat pipe has a good thermal conductivity. But the heat derived from the heat sink will eventually need to take the tropics through air convection. If there are no fins to dissipate heat, the heat pipe will soon reach thermal equilibrium and the temperature will rise with the heat sink. However, if heat dissipation fins are added to the heat pipe, the fins will still be used to dissipate heat. Moreover, the contact points of the fins and the heat pipe are not as good as other methods. The result is that the cost is high and the heat dissipation effect is not improved. However, it is still useful to use the heat pipe to conduct heat on the integrated LED, but the structure must be reasonable!

3. Superstition nano-radiation materials

The proportion of radiation heat dissipation in the current lamp temperature of about 50 degrees Celsius can be ignored. Even though the radiation coatings advertised by manufacturers have good radiation effects as they advertise, even if they reach the radiation capability of blackbody radiation, their heat dissipation proportion is only a few percent. How this meaning remains to be considered! And the coating itself will hinder the heat extraction, thus affecting the heat dissipation of convection.

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