DC 120V 2500rpm 150V 3000RPM 30W Powerful Motor Dia 51mm DIY Wind Turbine Generator Voltage: 120V DC; rotational speed: 2500RPM rated output: 30W it can be work on 12V dc; work on 220V AC with Bridge rectifier Size of motor: 51*76mm, dia of output shaft: 8mm, lenght of shaft: 33mm Weight: 600g, great for diy a Generator Package: 1 x dc Motor