Power: 750W. Suitable for motors with power not exceeding 750W. Safe to use, using aluminum plate heat sink, DC motor governor has fast heat dissipation, and can prolong the service life. Adjustable Speed Range: 1 to 1800 RPM Adjustable.
eBay
2 CHANNEL PWM Speed adjustment L298N New Dual H Bridge DC Stepper Motor Drive Controller Board Module for arduino Diy Kit
Aliexpress UK
Output current: 40A. Frequency: 15kHz. Suit for: DC Brush Motor. Function: Forward, Reverse, Stop. Speed Rang: 0-100%. Cancel Policy.
eBay
Artudatech AC 220V Input Knob 20A PWM DC 220V Motor Speed Controller Regulator Switch
Aliexpress UK
The product is compact and easy to install in narrow space. Suitable for: DC brush motor. If you are satisfied with our service, pls. The actual product color may deviate from the photo due to light.
eBay
1PCS EGBO Dual H Bridge DC Stepper Motor Drive Controller Board Module L298N for Arduino smart car robot
Aliexpress UK
[PWM MODULATION] With 0‑100% stepless variable speed, PWM modulation, has wide application range and strong practicality. Speed Regulation Principle: PWM modulation. [OVERLOAD PROTECTION] With overload protection, the will be automatically disconnected if the current is too large, and will be recovered after cooling.
eBay
1pc Upgraded Adjustable DC Motor Speed PWM Controller 10V 12V 24V 30V Reversing Switch 120W
Aliexpress UK
Rated current: continuous use current within 10A.
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PWM DC Motor Speed Dimmer Controller 5V 12V 16V 10A Voltage Regulator LED Dimmer Dimming Module Stepless Speed Regulator
Aliexpress UK
Max current: 60A. - Accuracy circuit design, high efficiency, high torque and high power. - High frequency drive system. - Rotary knob: 100K (with Switch). We can resolve the problem. We will do out best to make you satisfied!
eBay
1Pcs PWM DC Motor Speed Dimmer Controller 5V 12V 16V 10A Voltage Regulator LED Dimmer Dimming Module Stepless Speed Regulator
Aliexpress UK
Basic Specifications: The frequency of this DC motor governor is 16khz (The motor is quiet at low speed and full of torsion at low speed). LED Display: 0.56in 3 digit oversized LED digital display with a display range of 000‑100, allowing you to see clearly in the worst conditions.
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DC 12V Motor Speed Controller PWM Speed Adjustable Switch 4-Wire Speed Control Module for RV Camper Vent Fan
Aliexpress UK
The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible.
eBay
1Pcs PWM DC Motor Speed Dimmer Controller 5V 12V 16V 10A Voltage Regulator LED Dimmer Dimming Module Stepless Speed Regulator
Aliexpress UK