Mounting Base:Without Mounting Base Shaft Material:iron is_customized:Yes Model Number:Wind Power Generator Alternator Type:Wind Power Generator Origin:Mainland China Certification:NONE Material:Plastic Motor Size:24.5mm x 34.2mm Fan Diameter:90mm Circuit Board Size:30mm x 25mm Output Voltage:DC 0.1-6V Output Current:0.01-0.3A Rated Speed:200-6000 RPM Output:USB 5V (+-0.2V) Quantity:1 Set Portable Wind Power Generator Set Turbine Motor Alternator Self-Generation Emergency Phone Charger Description: Features: Type:Wind Power Generator Alternator Material:Plastic Motor Size: Approx. 24.5mm x 34.2mm Fan Diameter: Approx. 90mm Circuit Board Size: Approx. 30mm x 25mm Output Voltage: DC 0.1-6V Output Current: 0.01-0.3A Rated Speed: 200-6000 RPM Output: USB 5V (+-0.2V) Quantity:1 Set Description: 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. 2. Simply charge your phone anywhere with this mini wind turbine power generator. 3. Simply plug your phones USB into supplied voltage regulator, pop your wind turbine in a wind stream (high wind power) and you have power generation. 4. Alternatorhas negative and positive pole, pls figure out which side is negative and which is positive, or it will burn out. 5. It can be used as a wind power teaching experiment. Great to cultivate students and kids hands-on ability. Notice: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 2-3mm differs due to manual measurement. Package Includes: 1 Set x Wind Power Generator Alternator