The fuel cell – the dot on the i for maximum freedom! Erich H. The EFOY fuel cell is just right for my needs. As a licensed amateur radio...

EFOY works perfectly even under hard conditions From Thibaut V.-C., Skipper I’ve been using an EFOY fuel cell since my participation of...

With EFOY, Norway and Scotland are a dream Detlev V. For decades, we have been absolute "camping opponents", successfully carrying out...

Reliable energy supply for unmanned deep-sea missions Roland S. Five years ago we started with the development of robot sailing boats. In...