How to distinguish the flash and constant light of photographic equipment from the appearance

1, size, generally speaking, generally speaking, the flash is smaller and the constant light is larger;

2. Control panel, is there a small icon similar to lightning? This is a flash test button, and some are flashing lights;

3, workmanship, exquisite and complicated is generally a flash, simple is generally a constant light;

4. Look at the interface. The interface with a camera is a flash, and the interface without a camera is usually a constant light. ...

For reference only, hehe