AMPHI is designed and built to provide reliable pumping performance. The Inverter Technology reduces energy consumption making it suitable for all day use, giving energy savings of up to 70% while retaining strong and consistent water flow. Inverter Technology. Energy savings of up to 70% while maintaining strong flowrate. Intelligent Motor-Overheat Protection. Prevents the pump from overheating due to pump running without water, stalling of impeller and surge of electrical current. Tough Attrition-Resistant Impeller. Wear-resistant and provides better performance. Replaceable Impeller. Allows for easy replacement to maintain high performance level.