H2 POWER 10L is a system able to provide up to 1Nm3/h of hydrogen. The hydrogen is produced from three Hydrogen Generators “6920.16.330” connected in parallel mode. 6920.16.330 uses an electrolytic cell with polymeric membrane (PEM) to produce pure hydrogen from distilled water. No acid or alkaline solutions are used. It is provided with an internal 1.1 litres tank with electronic level control and an automatic fill function “Autorefill” from an external source.