A minute of shaking creates an hour of light in this self electricity generating pen
The concept is meant for underprivileged children who don’t have access to lighting and want to study – The Lampen is literally a pen with a built-in light. It doesn’t work on magic, but has a logical explanation for functioning. Simply shake the pen for a minute and using the principles of electromagnetic induction, this self-electricity-generating pen lights up for 2 hours. Use it as a stand lamp, flashlight or a pen-light, the choice is yours!
发布于2019-11-18