Aluminum nitride (AlN) and aluminum oxide (Al2O3) areDeep ultraviolet UVC-LEDThe commonly used bracket materials, in addition to differences in materials, also have significant differences in appearance, color, and thermal conductivity due to differences in preparation processes. A detailed comparison can be seen in the following figure
It should be noted that AlN ceramics are black, while alumina ceramics come in three types: white, gray, and black
