A power supply is an electrical device that supplies electric power to an electrical load. ... The source of power may come from the electric power grid, such as an electrical outlet, energy storage devices such as batteries or fuel cells, generators or alternators, solar power converters, or another power supply . Specifications: Iron housing Input: AC 100~254VAC / 50~60Hz Output : DC +24V / 3 2A Great switching power supply for home appliances Dimensions: 16 cm x 9.8 cm x 4.2 cm Weight : 397g Color : Silver Package Includes: 1 x Switching Power Supply