Ask a 20-square-meter simple studio about lighting.

The light bulb you are talking about is a modeling lamp. Usually we don't use modeling light to take pictures, because its color temperature is unstable and low. There must be at least two soft boxes, and three are no problem. Your main problem is that your room is not wide enough! It is difficult to put down two lights at 3.3 meters. After reluctantly putting it down, the photographer can hardly do anything freely, but take registration photos or portraits. Single light, double light and multi-light can be used to take portraits, but at least three flashlights should be prepared! More different shooting needs can use reflector, reflective umbrella, transparent umbrella, beam cover, soft box and other accessories.

Question 2:

It is recommended that you use a flash, 105W photographic lamp or sun lamp. The heat it emits directly shines on people in such a small space. Maybe I can't stand it, the heat! According to the size of your room, it is recommended to use a flash with a power of 250w W. The S- 180 power of Jinbei is only 180W, which is difficult to meet.