Flatpack2 HE has nearly 100 billion on-site operating hours and over 2.6 million verified cumulative on-site MTBF hours, making it the longest recorded high-efficiency rectifier. The constantly improving network speed requires flexible and scalable DC power solutions. The Eltek Flatpack2 48/2000 HE rectifier is a key component for meeting your future needs. Super High Efficiency rectifier for Telecom Applications.The Flatpack2 2000/48 Super HE is fully compatible with Flatpack2 and Flatpack2 HE systems and can replace any 2kW Flatpack2 module.