This IndiPRO Tools AC Power Supply with a Dummy Battery lets you conveniently power Panasonic GH5 cameras by using a DMW-BLF19 type dummy battery directly from a wall outlet, allowing for continuous power at an event or in the studio. The power cable runs 8 ft long so you'll have enough length to move around. n one end this handy power supply features an Panasonic DMW-BLF19 type dummy battery, and the other end has a standard US power plug. At the same time it supports worldwide 100-240V power input (using optional plug adapters).