Powerful and Efficient Synchronous AC Motor Generate 220 Volts @4 Watt

Very interesting device coming from the unlikely electrical appliance (Microwave Oven). This is synchronous AC motor that can output AC power at 4 watt @220-240 volts. It's very efficient with just a small turn of hand crank it can light up a bulb that is rated 220 volt @3 watt. See it yourself in the video...this is one idea how we can harvest mechanical energy...