◆◆◆◆◆ Solutions for indoor photography electronic flash ◆◆◆◆◆

The top knob is used to adjust the output power.

The black F 5A on the lower left should be a fuse.

The red in the lower right corner is the test button, which will flash when pressed.

Big red switch,

The hole in the middle should be a synchronous line socket, and the camera can be connected with a synchronous line.

It is not clear whether this brand can have continuous lighting function. However, the ordinary flash lamp can't emit light continuously.