Ask some questions about photography and lighting.

1, indoor photography as long as the brightness of the background light is lower than that of the flash, there is not much problem. The color and color temperature of indoor lighting will affect the white balance of photos. However, commercial shooting suggests that you use RAW format, as long as you consider the correct exposure.

2. The modeling lamp (the light bulb you mean) used for indoor shooting is not necessarily bright enough, and no one stipulates that other lamps cannot be used for lighting.

3. The distance problem depends on your background. A distance of 1.5 meters above the solid color background is enough. The background of the pattern depends on your pattern requirements. The simplest lighting is as long as there is no shadow on the background.