Want to the safe, you first need to do is to guarantee the quality of switch power supply, only the high quality of switch power supply to ensure the safety of the long-term power. So for the manufacturers of switching power supply must be responsible to achieve safety in production, for each factory products do a good job in quality inspection for dealing with the unqualified products must be strictly, when they are in the production of switch power supply for each piece will be the factory products strict quality inspection work has been done, once found substandard products even destroy also won't let it flow into the market, because they know that every product is their company's image, is only able to produce the high quality of switch power supply to ensure the safety of the power of the people, can bring to the company a better development.