Item Type: Motor Speed Controller Material: PCB, aluminium alloy, ABS Input Voltage: DC12V-55V Output Voltage: Linear under load. Output Current: 0-20A, within 10A for long term use, pay attention to keep the module unobstructed for heat dissipation. Limit Power: 1200W Speed Regulation Type: PWM Regulation Speed Regulation Mode: Linear Potentiometer Speed Range: 0-100% Control Frequency: 25kHz Package List 1 x Motor Speed Controller Do not use overload. 1Smart Control: Allows for a wide speed adjusting range from 0 to 100%, the brushed motor controller enables better control. 2Broad Utility: The PWM motor regulator can also be widely applied to the dimming of DC circuit to meet your various needs. 3Reliable Work: With a limit power of 1200W, the PWM control module ensures high efficiency, large torsion and low heat. 4Simple in Use: Just rotate the knob for simple adjustment, and the easy will largely save your time and labour in working. 5Easy to Install: Comes with a compact size and a light weight as well, the installation is very convenient to complete.