DESCRIPTION: Input speed: 2400-6800RPM Output voltage: DC12V-38V Max load current: 880MA motor output voltage is related with speed ， the higher the speed， the higher the output voltage.Can be used below 12V LED lamp lighting， mobile phone charge， bicycle power supply， scientific experiments and inventions， outdoor power supply， and other purposes.Output diameter of axle: 3.2MMWeight: 185gPackaging DetailsUnit Type:piecePackage Weight:0.280kg (0.62lb.)Package Size:15cm x 15cm x 15cm