Please tell me how this photo was taken by the photography teacher. What kind of photographic lamp do you need?

This picture can be typed only or ps later.

There are two kinds of lamps, one is photographic flash and the other is photographic lighting. Although the two lamps are used in different ways, this effect can be achieved by adding a condenser (commonly known as a pig's mouth) or making a conical opaque paper tube. The advantage is that the effect is real. The disadvantage is that it takes time and effort.

The post-processing of Ps is to superimpose the black gradient on the surrounding area. The advantage is that it is relatively easy, and the disadvantage is that it is fake if it is not done well.

Besides, the lights on it can't be played without props. You have to add a paper tube or a pig's mouth