Recently, Sebastien Sauvage designed a "pull light" (pronamed Pullight Dynamo), a cool LED flashlight.
The LED flashlight does not need to be installed with a battery, and does not need to be plugged in, but drives the three-phase generator inside the machine to generate electricity by pulling. In addition to the use of flashlights, the generated electricity can be externally charged to the iPod or mobile phone, which is a very energy-saving product. (small soup)
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