Specification Brand : Keenso BulletPoint1 : ??[A Longer Service Life] Pwm DC motor speed controller is made with high quality circuit board which ensures a longer service life.Input voltage of DC motor controller is DC 6V 12V 24V BulletPoint2 : ??[Voltage ] Motor speed control module is convenient to use, simply rotate the knob to change output so to change the revolving speed of brushed motor.DC motor controller is reliable, with anti-static circuit, transient suppression , undervoltage and over-voltage BulletPoint3 : ??[Convenient Screw Terminals] Electrical motor controls is designed with convenient screw terminals for quick wire connection.Adjust the motor smooth no noise no vibration,with power indication,wide duty cycle adjustment range BulletPoint4 : ??[Simple and Easy-To-Use] This motor speed controller is a simple and easy-to-use DC brushed motor speed controller of elegant appearance and stable performance.Speed regulator is suitable for long hours of work:Circuit optimization design BulletPoint5 : ??[Change Direction of Rotation] This speed regulator electric motor would change direction of rotation that accomplishes reversing motor's direction Color : 55RPM ExternallyAssignedProductIdentifier1 : 0791655739260 ExternallyAssignedProductIdentifier2 : 791655739260 Horsepower : 35 watts ItemName : DC P-W-M Motor Speed Control Reversible Controller Regulator, 6V 12V 24V 3A Electrical Motor Controls with Switch ItemPackageDimensions_Height : 11.5 centimeters ItemPackageDimensions_Length : 1.6 centimeters ItemPackageDimensions_Width : 7.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : electric-motor-controls Manufacturer : Keenso Material : Copper PartNumber : Keen so0grx2uzch3 ProductDescription : Stroke(Degrees): 90Degrees; Rated Voltage: DC12V; No load Speed: 55RPM; Rated Torque: 1.23kg.cm; This Linkage Mechanism is an automatic constantly reciprocating linear actuator motor, which frequency is variable; This machine output in a rod, the speed of rod is Non-uniform. If require speed uniform pls don't purchase. The speed faster, the noise louder. If require quietly, pls consider carefully before you purchase. If you need power supply and speed controller can contact us freely, thanks! ProductSiteLaunchDate : 2019-07-29T12:13:32.028Z Size : 55RPM Speed : 55 rpm Style : 90degree SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 26111500 Voltage : 12 volts