45-5690 is a GC Electronics electrical power supply. It is a high efficiency, regulated switching DC power supply that can output up to 90 Watts of power. It features an adjustable voltage from 1.7V to 20V, and features low ripple noise, short circuit protection, and thermal shutdown protection. It is UL and CUL listed for safety, and is suitable for powering digital circuits, light-emitting diodes (LEDs), radio, sound systems, and a variety of other home and/or commercial applications.