Smallest Mini Wind Turbines Generator LED Teaching Tools Sample Model Hot
11,38 €
The world's smallest wind for, can turn 360graus at any angle, and will automatically face the wind direction. Power generation will light the LED (2 blue LED and green LED 1). LED low power consumption required, Blowing into his mouth or under a fan is enough to get the power to light up the LED, which is also.
Jetzt bei Ebay: