Fuelab digital fuel pumps, fuel pressure regulators and accessories - for the best fuel supply H/E Series Fuel Pump Controller 0-5v Input Signal Fuel Pump Controller with highest precision FueLab - Fuel supply at the highest level The H/E controllers are specially designed for vehicles that already have original built-in brushless and digitally controlled fuel pumps. These are, for example, the Porsche 991, Mercedes AMG GT, Mini Cooper and more and more other new vehicle models. By means of the H/E controller, on the one hand, the delivery rate of the pumps can be increased and, on the other hand (depending on the version of the controller), the delivery rate can also be individually adjusted.