Pulse Width Modulation(PWM): 1%-100 percent LED digital display. You can use to increase, pause, and reduce the speed of the reciprocating linear actuator. Item Type: DC Motor Speed Regulator. Only suitable for DC brushed motors.
eBay
DC 3-12V Mini Wireless Remote Control Forward And Reverse Pwm Speed Control Module DC Motor Drive Module
Aliexpress UK
Maximum Current: 20A. PWM Frequency: 25kHz. 1 DC Motor Governor. Easy to use, simply rotate the knob to change output so to change the speed of DC motor.
eBay
500W High Power BLDC Motor Driver 6-60V 20A Hall Brushless Motor Speed Control Board PWM DC 3 Phase Motor Drive Module
Aliexpress UK
Input Speed: 1350 RPM. Output Speed Range: 0 to 1450 RPM.
eBay
DC 12V Brushless Motor TY3816B Outrunner Brushless Motor with Driver Board, Support Forward and Reverse, PWM Speed Control Motor
Aliexpress UK
Maximum Current: 10A. 1 DC Motor Governor. With reverse connection protection function. Frequency: 13kHz. If you are satisfied with our service, pls.
eBay
RS550 / 555 10 Teeth 6V/12V/24V DC Motor 12000-40000 RPM Kids Ride On Toys Car Motor Speed Electric Motor for Remote Control Car
Aliexpress UK
DC 9V~60V DC Speed Regulator. The speed regulator uses PWM technology, which has the characteristics of high conversion efficiency, wide speed regulation range and stable performance. Peak current: 20A.
eBay
Mini 5A 10A 90W PWM 12V DC Motor Speed Controller Module DC-DC 4.5V-35V Adjustable Regulator Control Governor Switch 24V
Aliexpress UK
Current: 20A. Switching frequency: 25KHz. Waterproof, anti leakage enclosure, high power drive module. Durable in use. The positive and negative poles of the motor can be reversed.
eBay
Mini 5A 10A 90W PWM 12V DC Motor Speed Controller Module DC-DC 4.5V-35V Adjustable Regulator Control Governor Switch 24V
Aliexpress UK
This speed governor is used for the use of DC brushed motors (the motor is connected regardless of positive or negative). Good‑quality resin material, possess heat resistance, low temperature resistance, and excellent electrical performance.
eBay
Mini 5A 10A 90W PWM 12V DC Motor Speed Controller Module DC-DC 4.5V-35V Adjustable Regulator Control Governor Switch 24V
Aliexpress UK
The maximum output power : 400W(the power is 12V 10A =120W. 24V maximum power of 200W) PWM frequency is 21KHz ;. Suitable for the DC motor (or DC load) within 8A, Peak current 10A. TO CHANGE MOTOR DIRECTION, INTERCHANGE THE POSITIVE AND NEGATIVE WIRES OF MOTOR.
eBay
Mini 5A 10A 90W PWM 12V DC Motor Speed Controller Module DC-DC 4.5V-35V Adjustable Regulator Control Governor Switch 24V
Aliexpress UK