Synchronous Geared Motor, Single Phase Synchronous Motor, 220/230v 50/60HZ Power:4W Phase:Single-phase Speed:Variable Speed Synchronous Gear Motor, Single Phase Synchronous Motor, AC Induction MotorStructure: Synchronous Geared MotorPhase: Single-phase Features:Gear box inside designedHigh torque and efficiency with low noise, light weightSpeed state invariable not effected by voltage under rated ...