This product is a dc motor speed controller, made of solid materials, safe and durable. It can serve you for a long time without being easily . The product is an excellent dc motor speed controller that can bring you more convenience, allowing you to have comfortable experience. Features -Color:Multi -Material:Aluminum alloy, PCB -Size:8.50X5.80X3.80cm/3.34X2.28X1.49in Voltage input: 9-60V Output current: 20A PWM frequency: 15kHz - 9-60V wide voltage input (60V is the maximum working voltage, please leave a margin when using it), adapting to more DC motors. - The maximum output current is 20A, which can provide enough driving capacity for the motor. - Function: The PWM DC motor speed controller has the functions of running, stopping and braking. The adjustable potentiometer cord is detachable. - Circuit optimization design: wide range of duty ratio adjustment, stable motor adjustment without noise and vibration, charge indicator, stable circuit design, precision welding , stable and long-term use. - Adopts precision production to the stable characteristics and high reliability. Package list: 1 x Dc Motor Speed Controller