LED flood light shell manufacturers briefly describe the heat dissipation of LED flood light:

The quality of the radiator of the lamp is the primary issue that directly affects the size of the light attenuation. The three basic methods of heat dissipation technology and heat transfer of the lamp housing are: conduction, convection and radiation. The thermal management also starts from these three aspects, which is divided into transient analysis. And steady-state analysis.

The main transmission path of the radiator is conduction and convection heat dissipation, and the radiant heat dissipation under natural convection cannot be ignored. The lighting fixtures mostly use high-power LEDs. At present, the luminous efficiency of commercial high-power LEDs is only 15% to 30%, and most of the remaining energy is converted into heat energy.

If the heat energy cannot be effectively discharged, it will lead to very serious consequences. High temperature will reduce the luminous flux and luminous efficiency of the LED, cause light wave redshift, color cast, and also cause bad phenomena such as device aging. What is important is that the life of the LED will be reduced exponentially, because the light decay or the life of the LED is It is directly related to its junction temperature. If the heat dissipation is not good, the junction temperature will be high and the life will be short. According to the Arrhenius law, the life will be extended by 2 times for every 10°C decrease in temperature.