Modular Led Street Light

Different heat dissipation configurations of modular led street light to investigate the changes in luminous flux,correlated color temperature,and temperature of the light. Heat-dissipation plate-fin and polymerizable liquid matrix thermal conductive material(thermal grease) were used to devise four types of modular led street light. Subsequently, light decay ratio,color shift,and temperature distribution of led street light were compared and comprehensively analyzed to determine the changes in the efficiency of heat dissipation in the modular led street lights. The modular led street light produced were switched on for long periods,and the results indicated that the modules comprising both the plate-fin and thermal grease outperformed the other modules. Combining heat-dissipation plate-fin with thermal grease(a thermal conductor) yielded a product that exhibited a light decay ratio of 87.6% and color shift of approximately 2.5%. An infrared thermometer was then used to measure the temperature at the center point of the modules, showing that the temperatures of the modular led street light were exceedingly lower than those of other led street light.The results verified that an effective heat dissipation configuration lowered the temperature of modular led street light, thereby enhancing the luminous flux and preventing color shift. To verify the validity of the experimental results,we compared different led street lights. In addition, the plate-fins were modified in terms of spacing,height,length,thickness,and surface coasting to optimize the effects of heat dissipation. Heat-dissipation plate-fin combined with thermal grease as thermal conductor and various measurement methods(such as an integrating sphere instrument to measure and verify the led street light decay ratio and color shift,thermometer) to verify whether the temperature at various points on the modular led street light differed when various heat dissipation configuration was used in the led street light. Overall,the experimental results indicated that a superior heat dissipation configuration lowered the overall temperature of modular led street light, thereby enhancing the luminous flux and preventing color shift.