On-camera light with included power supply

PSU

— a device for connecting a lighting device to the power grid. This connection can be used for two main purposes - operating the light source from a socket (see "Power supply from the network") and charging the battery directly in the device itself. Modern models of on-camera lighting can support either one of these functions or both at once - the details should be clarified additionally. It should also be noted that not all devices with the ability to operate from the network are initially equipped with power supplies - in some cases, such an accessory must be purchased separately.