Power Supply Requirements - VIDEO4 Professional
The VIDEO4 professional has an improved power supply compared with the VIDEO4 sport and can operate at voltages from 6v to 35v while supplying a regulated 12v to the camera outputs. The VIDEO4 professional requires about 5W of power, plus whatever is required by the cameras, so a typical complete 4 camera system will take about 10W. If the system is run from a 12v source this equated to about 1A, if it is run from a higher voltage then this will decrease and visa versa.