Our UL Listed Desktop switching power supply allows the alternating current to become direct current, being ideal to provide a reliable and constant source of electricity for LED products. Its function is to ensure that the LED does not receive peaks of voltage or current thanks to the components it's built with. This is ideal for Industrial, Commercial or Household Indoor applications. Switch Power Supply: Switch Mode Power Supplies, or SMPS, are becoming frequently sought out for and in most cases, have replaced the traditional linear ac-to-dc power supplies as a way to cut power consumption, reduce heat dissipation, as well as size and weight. Switch-mode power supplies can now be found in most PC's, power amplifiers, TV's, dc motor drives, etc., and almost anything that requires a highly efficient supply as switch-mode, power supplies are increasingly becoming a much more mature technology. The major advantage of the switch mode power supply is its higher efficiency, compared to standard linear regulators.