The EMAX AC-1154 is a multipurpose AC power supply module designed for use in a variety of applications. It is capable of providing a stable output voltage of 5V, 12V and 24V with current ratings up to 4A. The high switching frequency of 100kHz allows the module to maintain an extremely low level of ripple. It also features an adjustable load circuit which allows the user to select either constant current or constant voltage output. Additionally, the module is equipped with reverse polarity protection and overload protection (circuit breakers) to protect the load from being shorted out. Lastly it offers multiple protection functions, such as over voltage, over current and short circuit protection.