4 Pcs Mini DC Motor PWM Speed Controller, 5V-35V 5A Adjustable Switch Module, 6V 12V 24V Variable Voltage Regulator Dimm

The mini-style DC motor speed controller controls the speed of a DC motor by adjusting pulse-width-modulated (PWM) with the latest low-voltage technology. Voltage range: DC 5~35V, Current range: Within 5A, Adjustable Speed range: 0~100%, PWM frequency: 20khz. The motor speed controller can easily supply 5A continuous current to your DC motor or other DC load; Standard disconnection of short circuit point, it applies to 5-35V input voltage. It can not only be used for DC motor controls of speed, but also to use for adjusting the LED light. Note: Connect this DC controller to the DC power supply. Never connect directly to a household 220V AC power supply, otherwise it will be damaged.