What do yopu think you’re going to run with a little piece of junk like that?
An automobile alternator will put out about a thousand times as much with the same cranking effort.
It’s just a way for non-technical people to charge up stuff like LED flashlights and small radios...of course it’s wimpy compared to a serious generator. This puts out way more power than the dc motor/generator in those little emergency crank radios. This lets Joe Sixpack keep a pocket radio and flashlight working. I tried this out to see how well it worked and two minutes cranking powered a small radio (two AA Nicads) for well over an hour.