Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, electrical equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LED lighting, audio-visual products, security, computer chassis, digital products and instruments.

Generally speaking, the true no-load voltage of an ordinary power adapter may not necessarily be completely consistent with the nominal voltage, as the characteristics of electronic components cannot be completely consistent, so there is a certain error. The smaller the error, the higher the consistency requirements for electronic components, and the higher the production cost, so the price is also higher.