Imperium Feed Duration ControllerImperium Feed Duration Controller Precision Feeding From 1 Second to 15 Minutes The Imperium Feed Duration Controller offers precision feeding that can be adjusted to suit each life stage of your crops. The controller is used with a segmental timer to enable growers to set the duration of feeds to the second, so that plants can be fed little and often to maximise growth. Function Provides precision control over feed time. 28 feed duration options.