Could I power a computer, monitor, computer speakers, and one 60 watt lightbulb with one of these? How long would I have to cycle to generate enough power for one day?
Are you talking about the little generator than ran on my bicycle tire and lit the headlamp and tail light?
Do a search; this topic was discussed about a month ago. For a laptop it’s not too hard, whereas powering a desktop would be work.
A previous thread on this topic.