The PRO2005W2E-2155 is a switched-mode, constant voltage power supply manufactured by Espe that produces 5VDC and an output of 4A, 20W. It has a plug style output and is usually used for applications requiring a reliable source of power. It is typically used in applications such as industrial automation, robotics, medical equipment, instrument driving, CCTV cameras and LED lighting. Its features include over voltage, short circuit, overload, and over temperature protection, and high efficiency and low ripple noise.