This generator works very well.
To be honest, too well!
I have performed several load tests, e.g.
with two 12V/55W-light bulbs for car headlights.
Here you have to be careful not to pedal too quickly, otherwise the light bulbs burn out.
I had no problem reaching 30 volts.
At this voltage, the 12V car headlamps burn out.
First they glow white, then blue, and then suddenly puffff.