Exceptionally silent, lightweight and robust mobile generators with 4-stroke engine, unleaded standard petrol. Operating time ranges, depending on the model, between 4.5 and 25 hours. The model EU 10i is equipped with 1, models EU 22i, EU 30i and EU 30is with 2 protective sockets. The Gene21-series (EU models) uses inverter technology, providing perfectly stable frequency and voltage. In addition, these models feature an eco-set-up, a control automatically adjusting the rpm the used voltage, extending the operation time of the generator significantly by doing so. Excellent and comfortable handling makes faulty operation close to impossible. For safety reasons, all 4 models feature an overload protection, as well as an oil deficiency automatic cut-off. Another plus: 2 Gene21-series models of the same type can easily be connected in parallel to double the power output.