The Greenworks R0201187-00 Power Control Board is an essential part used to control and manage electrical power. It plays the role of distribution where the voltage and current are regulated to ensure that they are at their better and not destructive. This board receives inputs from the controls, for instance, the speed control and then converts these inputs into accurate power output... https://www.wholetoolbox.com/greenworks-r0201187-00-power-control-board