solar street light cooling system - hot pressing

How does the solar street light source dissipate heat? The normal solar street light system has a design called the thermal pressure draft effect. It can dissipate heat through natural exhaust. The common chimney has a certain height and the pressure difference formed by the drop. Natural ventilation to form airflow. The principle we use on the street lights is that the middle of the street light pole is hollow, and the air is drawn to the radiator, and the air is exhausted to dissipate heat. The specific street lamp LED lamps are installed on the street lamp pole, generally 9 meters, which means that the height of the radiator of the light source to the ground is 9 meters. At this time, a drop of 9 meters is formed, and the air is exhausted through the pressure difference. Cold air is drawn from the bottom of the lamp pole, pumped up, passed through the lamp pole, and then reaches the power supply cavity. The radiator is then discharged by the lamp head. If the airflow is super strong, the cooling effect will be better. As shown below:
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