2. Simply charge your phone anywhere with this mini wind turbine power generator. 3. Simply plug your phones USB into supplied voltage regulator, your wind turbine in a wind stream (high wind power) and you have power generation. 1. Complete set mini wind power generator alternator kits. It needs yourself to assemble the wind generator, you can enjoy the DIY fun at the same time. 4. Alternatorhas negative and positive pole, pls figure out which side is negative and which is positive, or it burn out. 5. It can be used as a wind power teaching experiment. Great to cultivate students and kids hands-on ability., Manufacturer: Akfldms