Flatpack2 48V SHE Rectifiers Flatpack2 48V Super HE 48/2000 SHE Eltek Flatpack2 48V Super HE rectifiers are contributing to setting the new industry standard for efficiency in the DC power market. With an efficiency of 97.8%, the Super HE is a premium rectifier particularly suitable for markets and applications where the energy is costly. In grid-connected applications, the payback time is down to 2 years compared to standard HE rectifiers, and in hybrid applications even faster. Eltek Flatpack2 Super HE is fully compatible with Flatpack2 and Flatpack2 HE systems and can replace any Flatpack2 48V rectifier module.