I bought this kit and I found little particles of water inside the fuel cell as if it had been used before, is it normal?

Hi Sebastian,All of our products are brand new. Please test and check if the fuel cell is working properly. Else, please contact Customer Service to start the RMA process.

What are the specs on the tubbing?

silicon tubing, 2mm inner, 4mm outer diameter

A PEM cell, tubing (~2 ft), 1 dc motor, a battery case with switch, a solar cell, 2 reservoirs for the O2 and the H2, 2 stands, wires a CD with instructions. very straight forward to follow.

If the fuel cell generates water as subproduct, How does water have to be removed from fuel cell for avoiding damage?

I haven't used mine in a while but I'm pretty sure it is a closed system. There is water at the beginning that is split into H and O with electrolysis and then that same H and O are combined back into water with the fuel cell. the first step requires electricity (solar panel) and the 2nd step makes electricity. Mine came with a small motor that ran in step 2. you don't have to remove excess water or add more water as this is all happening. it's a closed system.

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Horizon Fuel Cell Technologies Solar Hydrogen Education Kit

Horizon Fuel Cell Technologies Solar Hydrogen Education Kit

Product ID: 633159774

Details

Age Range (Description)
boy
Brand
Horizon
Item dimensions L x W x H
21 x 15 x 10
Size
21 x 15 x 10
Theme
Science

🔋Hydrogen storage & reuse

☀️Solar-powered clean energy

⚛️Reversible PEM fuel cell tech

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₩841803

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Description

⚡ Power your curiosity with the future of clean energy!

ENERGY STORAGE REUSE - Store hydrogen and oxygen safely and reuse them to power a small electric motor and propeller—real-world energy in action.
HANDS ON STEM LEARNING - Build, experiment, and understand the science of renewable energy with a complete kit designed for future innovators.
HARNESS THE SUNS POWER - Generate renewable hydrogen fuel directly from sunlight and water for a truly green energy experience.
CUTTING EDGE PEM FUEL CELL - Explore advanced proton exchange membrane technology that converts hydrogen into clean electricity efficiently.
FUTURE PROOF YOUR KNOWLEDGE - Join thousands of science enthusiasts mastering the fundamentals of sustainable energy and hydrogen tech.

The Horizon Fuel Cell Technologies Solar Hydrogen Education Kit is a comprehensive STEM learning tool that enables users to generate renewable hydrogen fuel using solar energy and water. Featuring a reversible PEM fuel cell, hydrogen and oxygen storage cylinders, and a small electric motor with propeller, this kit offers hands-on experiments to teach the fundamentals of chemistry, physics, and sustainable energy technology.

Specifications

ASIN	B00202CUZ4
Age Range (Description)	boy
Age Range Description	boy
Battery Description	Hydrogen Fuel Cell
Best Sellers Rank	#110,835 in Toys & Games ( See Top 100 in Toys & Games ) #2,856 in Science Toys & Kits
Brand	CEBEKIT
Customer Reviews	4.3 out of 5 stars 121 Reviews
EU Spare Part Availability Duration	1 Years
Educational Objective	science
Global Trade Identification Number	00696748421094, 06942503401028
Included Components	Building set
Is Assembly Required	Yes
Item Dimensions	21 x 15 x 10 Centimeters
Item Weight	0.58 Kilograms
Item dimensions L x W x H	21 x 15 x 10 Centimeters
Manufacturer	Horizon Fuel Cell Technologies
Manufacturer Part Number	FCJJ-16
Material	Plastic
Maximum Recommended age	180.0
Model Number	FCJJ-16
Set Name	Solar Hydrogen Education Kit
Size	21 x 15 x 10 cm
Theme	Science
UPC	696748421094
Unit Count	1.0 Count

Reviews

D**N

21.07.2025

C**.

24.10.2019

S**A

9.08.2015

J**T

22.05.2021

B**Y

27.10.2023

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