Excuse me, how many watts of studio flash and several lights does a photographer need for a 20-square-meter room to take portraits?

300w is enough, but considering that the power of the video lamp will gradually decrease in use, if the funds are sufficient, you can choose a larger one, between 400 and 600. Portrait photography requires at least two video lights (one main and one auxiliary). If you want to take artistic photos, you can use single-lamp photography or multi-lamp photography. Multi-lamp photography can gradually add floor lamps, contour lamps, background lamps and lighting lamps on the basis of one main and one auxiliary. ......