How to Select a Switching Power Supply Accurately 1.Identify Product Parameters: First, determine your product's input voltage, output voltage, output current, and rated power. 2.Match Power Appropriately: If the input voltage is 110V, it is recommended to select a switching power supply with 1.4 times the rated power. If the input voltage is 220V, it is suggested to choose one with 1.2 times the rated power. 3.Ensure Voltage Matching: The product's voltage should match the power supply's output voltage, with an allowed voltage fluctuation range of ±5%V to ensure normal operation. 4.Ensure correct wiring: Please make sure the input and output terminals are connected correctly when wiring. It is strongly recommended to have a licensed electrician perform the professional installation. 5.Special Application Notes: For battery-powered products, ensure that the battery terminal is equipped with a constant-current and constant-voltage charging module to protect the power supply and battery. For motor-driven products, due to their characteristics,it is recommended to choose a switching power supply with 2 times the rated power to ensure stable operation.