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H-12 PEM Fuel Cell - 12W

12W PEM Fuel Cell Stack Overview

This PEM fuel cell stack was originally developed for primary school students as an entry level platform into learning about hydrogen fuel cells.  Hydrogen fuel cells are a zero emission technology and enable students to learn about how to electrify the world.  However, as more organizations seek to decarbonize their products this fuel cell stack is expanding beyond its original use-case.  In product development this 12 watt fuel cell can be used to economically demonstrate a prototype, which can help to determine the viability of integrating fuel cell technology into a project.  The fuel cell stack has a housing case built around it with an integrated fan.


Fuel Cell Stack 12W

Additional Information

While the H-12 can be purchased in standalone form, Horizon Educational recommends contacting us to build an entire package in order to more effectively integrate the product into your project.  Please click here to fill out a quote request form if you would like to create a whole package that includes the fuel cell stack and required auxiliary components.

While the H-Series fuel cell stacks are unable to offer an automatic level of continuous power, we do offer a DC-to-DC adapter enabling a continuous power output level from the fuel cell stack.

Fuel Cell and Hydrogen

Safety Requirements

Do not connect or disconnect power cables when the fuel cell stack is turned on. Warranty is void if the fuel cell stack is disassembled or otherwise altered. Hydrogen is a colorless, odorless, and flammable substance.  Always operate and store the fuel cell stacks and hydrogen storage canisters in an area with ample ventilation. Fuel cell systems should always be equipped with a highly accurate hydrogen sensor to detect any leaking hydrogen within the system or from the hydrogen storage canister. Please refer to the H-12 User Manual to see a complete list of the safety requirements for the product.

Hydrogen Blog

To see our 12W PEM Fuel Cell Stack in action, read our blog detailing an application of the system in a hydrogen demonstration truck.

Fuel Cell Stack 12W Quick Product Facts


Number of Cells

This fuel cell stack is composed of 13 fuel cells.


Hydrogen Pressure

Hydrogen must be fed into the fuel cell stack at a pressure of 0.45-0.55 Bar.


Ambient temperature

The fuel cell stack operates best in a temperature ranging from 41 to 86° F / 5-30°C.


FC Stack Weight

Stack weight (including fan and casing) is 0.60lb / 275g.


System Efficiency

At full power the efficiency of the system is 40%.



This fuel cell stack uses self-humidification.

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FC Stack Performance

The performance of the fuel cell stack is 7.8V @ 1.5A

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Hydrogen Consumption

Hydrogen consumption of the fuel cell stack is at rated power: 0.18l/min.

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Stack Dimensions

The stack dimensions of the prodct are 7.5 x 4.7 x 7.0cm

List of H-12 components:

1 x 12W fuel cell stack
1 x silicon tube (OD 4 x ID 2.5mm), 50cm long
1 x silicon tube (OD 6 x ID 3mm), 50cm long
1 x filter

2 x red plastic pin
2 x inlet/outlet gas fitting (M3-4)
1 x FC positive output line, 30cm long
1 x FC negative output line, 30cm long



pdf [880.45 kB]
pdf [1.25 MB]

User Manual

pdf [855.14 kB]

This product is only on demand. Please contact us.

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