This DC Motor Driver can be used in 4WD mobile robot platforms, combat robots, smart car competition, drive pumps, electric fans, conveyors, etc... This module uses 4 high-performance & high-current driver chips (BTS7960) with the following protective functions: Current short, over temperature and over voltage . You can control 2 motors with only 4 digital IO at the same time. Dual 15A @ 13.8V max output current, good responsiveness & braking performance. Four indicator leds are provided for easy and convenient debugging without motors. There are two AL Heat Sinks in the back of the module, to provide cooling for prolonged high-power working state. This DC Motor Driver module is directly compatible with Arduino.