In-Line Led 3Mm white hair green short feet High-power LED

The electro-optical conversion efficiency of UVC LEDs is extremely low. Measured by WPE, Bolb achieves 9.5% and Crystal IS at 8%, which is already a very high level. At present, it is generally around 2% to 5% in the industry. Since only a small part of the electric energy is converted into ultraviolet light, most of it is lost in the form of heat energy, which causes the UVC LED chip to generate abnormally severe heat, which directly affects the life and reliability of UVC LED products Light Emitting Diode Led.

Since the root cause of the low efficiency of UV LED electro-optical conversion is in the epitaxial stage, the technical bottleneck is difficult to break through, so the task of improving heat dissipation is transferred to downstream packages and modules. (This issue is explained in detail in the article "UV LED: Professional "killer" worth more than gold" by Ye Guoguang, so I won't go into details here)

In the selection of packaging materials, aluminum nitride substrates and ceramic substrates with excellent thermal conductivity are mainly used in the industry In-Line Led Lantern. As the difficulties of packaging technology are gradually overcome, the life and reliability of single UVC LED packaging devices are no longer a problem. At the same time, due to the emergence of the above-mentioned multi-chip integrated high-power UVC LEDs, it has brought new challenges to the heat dissipation of light-emitting components: the more integrated chips, the worse the heat dissipation, and some even have to install small ones. fan. In the design of the sterilization module, according to Dr. Meng Nan of Huiyi Technology, the structural design of the UV LED sterilization module gives priority to heat dissipation Light Emitting Diode In-line.