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An LED power supply is an electronic device that provides the power needed to drive one or more light emitting diodes (LEDs). The most common type of LED power supply is the switch mode power supply (SMPS). LED power supplies are used in a variety of applications including LED lighting, electric vehicle charging station and LCD TV back lighting. An SMPS is a DC-to-DC converter that uses high-frequency switching transistors to convert a DC input to a regulated DC output. The main advantages of SMPS are high efficiency, ... more