This controller has been designed for use in radio control aircraft and to support continuous currents of up to 25 amps when using 2-3 cell Li-Po battery packs and up to four sub-micro servos. The ESC features a lightweight plastic case, with exposed, finned heat sinks for both the motor drive mosfets, and unlike many controllers, the BEC regulators give you a more reliable and powerful power supply for your servos.