Recommended for use in small projects, the versatile H-12 PEM Fuel Cell is an air powered, air cooled and self-humidifying fuel cell. The H-12's air cooling feature renders bulky and inconvenient water cooling systems obsolete, allowing for a semi-integrated, efficient and reliable system. The H-12 comes equipped with an air blower, control electronics and a hydrogen supply valve. 

The H-Series PEM fuel cells are the most compact and the least heaviest fuel cell out in the world.

  • Integrated fan and casing
  • 2 watt stack with blowe

PEM Fuel Cell Properties

Number of Cells


Rated Power


Rated Performance

7.8V @ 1.5A

Purging Valve Voltage


Blower Voltage


Hydrogen and Air

Ambient Temperature

5 - 30 C; (41 - 86 F;)

Max Stack Temperature

55 C (131 F)

Hydrogen Pressure

0.45 - 0.55 Bar


Air (integrated cooling fan)

Stack Size

75 x 47 x 70mm (3" x 1.8" x 2.8")

Hydrogen Flow Rate at Max Output

0.18 L/min

Hydrogen Purity Requirement

≥ 99.995% (dry H2)

Start up time

≤ 30s (ambient temperature)

Efficiency of System

40% at Full Load

Stack Weight (with Fan & Casing)

275g ± 30g

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