Description This pwm controlleris made of premium material, which can withstand long-lasting use. Features the aluminum alloymaterial, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This pwm controllerwill make control voltage outputeasier and smoother. Features -Color:As Shown-Material:Aluminum alloy-Size:9.00X5.90X3.40cm/3.54X2.32X1.34in-Size:13.00X3.50X1.20cm/5.11X1.38X0.47inApplicable voltage range: DC 7-70VDrive current: up to 30AControl power: 12V within 300W, 24V within 400W, 48V within 450W, 60V within 500WDuty cycle adjustable range: about 1%-PWM frequency: 12KHZ- The PWM DC motor speed controller has the functions of running, stopping and braking. The adjustable potentiometer cord is detachable.- The motor speed control switch has a knob with switch function. Easy to use, it can be directly connected to the motor, and can control the motor speed from 0% to full speed.- This aluminum shell adjustable PWM motor speed controller uses high-voltage MOS tubes, triple-voltage 100V high-frequency low-resistance capacitors, and automotive fuses.- 7-70V wide voltage input (70V is the maximum working voltage, please leave a margin when using it), adapting to more DC motors.- With fine workmanship, simple in design and very practical in use, easily win your favors.Packing list: 1 x speed controller1 x fuse