Features:Type:Wind Power Generator AlternatorMaterial:PlasticMotor Size: Approx. 24.5mm x 34.2mmFan Diameter: Approx. 90mmCircuit Board Size: Approx. 30mm x 25mmOutput Voltage: DC 0.1-6VOutput Current: 0.01-0.3ARated Speed: 200-6000 RPMOutput: USB 5V (+-0.2V)Quantity:1 SetDescription: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.includes:1 Set x Wind Power Generator Alternator