VFD technology from Watertronics, a Lindsay company, assures precise water pressure at the sprinkler which means less water waste and greater savings. Key Benefits of VFD Panel upgrade include providing a smooth start and stop on pumps and motors. This means less wear and tear – and a longer lifespan for your pump system. A Watertronics VFD controller can pay for itself in water and greater energy savings with up to 25% on energy costs.