thermal investigations on led vapor chamber-based plates

this study utilizes a thermal-performance experiment with the illumination-analysis method to discuss the thermal performance of three kinds of led based plates comparing the experiments, theories, and simulation thermal resistances. the results show that the thermal performance of the led vapor chamber-based plate is better than that of the led copper-based plate with an input power above 5 w. and the experimental thermal resistance values of led copper- and vapor chamber-based plate are 0.41 °c/w and 0.38 °c/w at 6 w respectively. and the illumination of 6 watt led vapor chamber-based plate is 5% larger than the 6 watt led aluminum-based plate. thus, the led vapor chamber-based plate has the best thermal performance above 5 w.