According to different application requirements, it can be roughly divided into small power, medium power, high power UVC chip, low power is about 20-40 mA operation, optical power is 1-14 mW, medium power is 100 mA operation, optical power is 5-30 mW, high power is 350 mA operation, optical power is 30-160 mW; and most of the available bands on the market are about 260 nm-285 nm. . The choice of band and power is based on application and usage scenario. The simple selection rule is that the farther the irradiation distance is, the higher the chip power is needed. Dynamic demand (instant sterilization) requires higher optical power than static demand. Last but not least, chip technology is also needed. It is recommended to contact professional chip factories.