What is the difference between Godox’s flash lights and steady lights of different powers?

Flashes with different powers provide different maximum brightness for a single flash, and the illuminated areas are also different. It depends on the size of the object you are shooting to determine how much power of the flash you need, and the power of the flash. The bigger it is, the less demanding it is on the camera and the clearer the photos it takes. But the light of the always-on lamp is always bright, some can adjust the brightness, and some have constant brightness and cannot be adjusted.