PWM Frequency: 21kHz. Adjustable Duty Cycle: 0%-100%. If you are satisfied with our service, pls. Easy to Install: Designed to have a light weight as well as 57 x 37 x 21mm compact size, the installation is very easy.
eBay
1pc DC Motor Speed Controller PWM 1203BB 80W Speed Adjustable Reversible Pulse Forward and Reverse Control Switch Button 120
Aliexpress UK
Widely used in industrial DC motor speed regulation, DC fan, etc. The speed can be adjusted and it is easy to install. Made of high quality material, durable and long service life. If you are satisfied with our service, pls.
eBay
40A DC Motor Speed Controller 2000W Voltage Regulator Dimming Dimmer 9-50V Speed Control Thermostat Adjustable Electronic Module
Aliexpress UK
You can set the duty cycle, the upper and lower limits of the duty cycle, and the working frequency to give you a good experience. Working Frequency: 1KHz~99KHz Adjustable, 1KHz Stepping, Default Frequency 20KHz, Accuracy About 1%.
eBay
Mini 5A 90W PWM 12V DC Motor Speed Controller Module DC-DC 4.5V-35V Adjustable Speed Regulator Control Governor Switch 24V
Aliexpress UK
Input and Output: Designed for AC 220V input and AC 0~220V output, the AC motor speed regulator ensures high working efficiency with safety. Be cautious when using circuit board electronic products.
eBay
PWM DC Motor Speed Controller 6V 12V 24V 28V 3A Speed Regulator Switch
Aliexpress UK
It provides a continuous current of 3A to your DC motor or other DC load. The LED indicates the power and the speed of motor.
eBay
Micro Brushless Motor Speed Controller DC 3.7-4.2V ESC with Six-Speed Adjustment Compact Fan Driver Board for DIY Projects
Aliexpress UK
Applicable current: rated current 10A, instantaneous withstand peak current 20A. PWM frequency: 25kHz; Duty Cycle adjustable: 5%-100%. TO CHANGE MOTOR DIRECTION, INTERCHANGE THE POSITIVE AND NEGATIVE WIRES OF MOTOR.
eBay
DC8-24V Brushless DC Motor Speed Controller Driver PWM Speed Control Board Pinpoint Regulator Forward And Backward Control 18KHz
Aliexpress UK
Output Current: 30A. For example, if the maximum motor speed is 500 rpm, it will display 100 at 500 rpm and 50 at 250 rpm. Speed Range: 0% to 100%.
eBay
5A 90W PWM 12V DC Motor Speed Controller Module DC-DC 4.5V-35V Adjustable Speed 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
Multi-Channel Fan Motor Speed Controller PWM Speed Governor 12V 2A For PC Computer chassis fan
Aliexpress UK