Fig. 8 shows the change in the illuminated color according to the 2 LED package types operation time in the CIE color space. It was observed that the COB package with the insulating layer had a greater color coordinate change and the LED illuminated color is related to the temperature change. Fig. 9 shows the speed of light degradation rate according to the driving time change, assuming that the initially measured speed of light is 100% for both the COM and COB packages. The input currents for both package types were 1 A and the speed of light variation was compared until the total driving time reached 100 min. As a result, the COM package speed of light degradation rate was saturated and stabilized at 95% after 60 min while the COB package speed of light degradation rate was at 84% after 100 min and the degradation continued.