The coming of IoT and of mobile 5G requires a high efficiency supply on Small Cell universe.

Because of there are several possible way to install this technology, different answers are needed. They include indoor and outdoor solutions, with a power range that starts from few watt until we reach a maximum of 100W.

First, Solutions proposed are based on AC/DC converter flanked by backup system in Li-Ion technology, besides isolation system and electric protection in case of external connections.

Secondly, the solutions for remote supply steadily are realizable.