3PCS 12V~40V 10A PWM DC Motor Speed Control Switch Controller Voltage Regulator Dimmer with Knob-High Efficiency, Low Heat Generating，High Current Protection for Arduino auspowers_batchfour DC 30V/10A SMD optocoupler isolation

DC 30V/10A SMD optocoupler isolation

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3PCS 12V~40V 10A PWM DC Motor Speed Control Switch Controller Voltage Regulator Dimmer with Knob-High Efficiency, Low Heat Generating，High Current Protection for Arduino auspowers_batchfour DC 30V/10A SMD optocoupler isolation3PCS 12V~40V 10A PWM DC Motor Speed Control Switch Controller Voltage Regulator Dimmer with Knob High Efficiency, Low Heat GeneratingHigh Current Protection for Arduino Specification: Input supply voltage: DC 12V 40VThe maximum output power: 400WThe maximum continuous output current : 8AThe overload and short circuit protecting current is 10AStatic Current: 0. 02 A ( Standby )PWM frequency: 13kHzDuty Cycle adjustable: 10% 100%The operation environment