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Heat dissipation measures

Update:29 Dec 2018

Like traditional light source luminaires, LED luminaire […]

Like traditional light source luminaires, LED luminaires are also hot. The heat of LED luminaires comes from the loss of LED photoelectric conversion and the LED drive power. Different from the principle of traditional electric light source illumination (heat radiation of incandescent lamps and gas discharges such as fluorescent lamps), the illumination of LEDs is electroluminescence. Due to the problem of conversion efficiency, most of the energy output is mainly lattice generated by non-radiative recombination. The form of vibration converts thermal energy. The way heat is transferred within the LED is not radiation but conduction. Therefore, the main goal in the LED lamp heat dissipation design is to effectively conduct the heat of the LED chip effectively and effectively control the LED junction temperature in the LED lamp.

For LED lamps, in addition to the LED is a heat-generating component, the driver in the LED lamp is also a heat-generating component. In order to ensure the life with the LED light source, the thermal control of the LED driver is also very important. If the built-in driving power source is used, the lamp should be based on it. The internal ambient temperature selects the drive labeled with the corresponding tc. When the drive is installed separately, the corresponding tc driver should be selected according to the possible ambient temperature of the installation site.

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