I say the Efoy 210 generates 9 amps per hour when talking to friends but the reality is something 8.6 or something like that. When they say their solar can do that I say what system do you have that will generate power at 9, 10, 11, 12, 1, 2, 3, 4, 5, 6 during the night and early morning hours. What solar system do you have that generates power during our Pacific North West, Coastal BC and coastal Alaskan grey days that can last for a week?
Here is a decent article that discusses Efoy and talks about warranty issues that have been discussed in the past:
https://www.panbo.com/testing-the-ef...ort-fuel-cell/