Blue 3v Dc Hand Crank Power Generator Dynamo Green Energy Gear For Teaching

US $10.99

  • Guangdong, China
  • Jan 30th
Blue 3V DC Hand Crank power generator Dynamo Green energy gear for Teaching 3V DC Hand Crank power generator this is a Aseembled! Assembled size: 6x5cm Voltage: 3V DC Do not including the LED light There two way: 1. Gear box:  do not need the Handle 2. Generator : install the handle Package Including:1pcs

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