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Mini DC motor controller, but also apply to LED regulation Wide Voltage DC Motor Speed Regulator, PWM Duty Cycle: 1% -100% By screwing the potentiometer, it can turn off the power supply output High voltage and high current fuse resettable, automatic overcurrent disconnect, shut off for cooling for a few seconds fuses automatic recovery The default short-circuit point disconnect, is applicable to the input voltage 5-35V; If connect the short circuit point, it is suitable for the input of low voltage 3-15V