The rectifier/charger in the Flatpack2 HE series has different voltage and power ranges, all of which have an efficiency of over 96.5%. With over 4 trillion rectifiers installed and 1.9 million hours of surgery, Flatpack 2 He is the only one with a proven field record. Energy Star Available System Series From Flatpack2 He 48V rectifiers ranging from 8kW to A multiple cabinets and requiring high power requirements for telephones. The Eltek Flatpack2 48/3000 rectifier Flatpack2 provides power to the relevant battery charger, providing greater backup time and avoiding network service interruptions during phone calls.