How to install the flasher of photographic lamp? I know that the SLR has a flasher installed on its head. Where are the lights? Does that mean that some lights have automatic devices?

Lightning flashers are divided into transmitters and receivers and are usually sold in pairs. A transmitter can handle multiple receivers to promote multi-lamp flashing.

The transmitter is installed on the top of the camera, and the receiver is installed on the flash. For multi-lamp flashing, each lamp shall be equipped with a receiver.

There is also a transceiver flasher, which can send and receive.