What is the use of fill light in live broadcast? What kind of fill light is more popular?

Recently, Huguang's ring fill light is very popular. There are many head anchors around me who are using them. Our company has a relatively large site, and generally purchases ultra-thin soft light balls and ultra-thin soft light boxes from Huguang. This depends on the demand. If you want good light at home, it is recommended to choose a ring fill light. It has 36 kinds of light effects to choose from, which is very suitable for shooting various scenes. In addition to live broadcast, it can also be used as a desk lamp, which can be used for makeup and reading. Is the top three, very practical.