SMPS Box basically stands for switch mode power supply which is an electric circuit that is assigned to convert the power with the help of the switching devices. These devices are turned on or off by the user at the time when the frequency is really high. These further makes use of the storage components as well, for example; capacitors or indicators that supplies power in smooth and flawless connection when the switching device is in its non conduction condition. These are excellent means of power conversion and also minimizes the over all loss of power. SMPS Box controls and also stabilizes the power or output voltage.