The difference between photographic lamp and modeling lamp

First of all, the photographic lamp is a flash and the modeling lamp is a constant light. Photography lamp can't see the exposure range, so it can only be measured with exposure meter, or used for focusing with camera and modeling lamp. You can see the brightness range when the styling light is turned on. The difference between the two is that the photographic lamp is used to take pictures, and the modeling lamp is used to focus.