Make sure the motor connect to a constant current or chopper drive controller before you test motor. Connecting the motor directly to a power supply will destroy the motor. ProductSiteLaunchDate : 2022-08-09T08:02:03.206Z Size : 42*23 Speed : 1 amperes_per_watts Style : Nema 11 Stepper Motor SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 23260000 Voltage : 12 volts