LED Light Wind Mill Toy Teaching Model Smallest Mini Wind Turbines Generator Features: Mini wind generator LED Tools Teaching Sample Template. The world's smallest wind 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 can be used as a teaching experiment. Material: Plastic.
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