In our life, many household appliances comes with AC DC power adapter.  We know that power supply play the most important role in the useage of small appliances, such as sweeping robot, massager, aromatherapy machine and so on.  Many electronic devices can not be used directly by at regular city power voltage, so it is necessary to use a power adapter to convert alternating current into direct current, so that home appliances can work smoothly.  The international standard for electrical appliances is IEC61558, which applies to most household appliances.  Shenzhen Htchargerpower  High Tech Electronics Co.,Ltd. has set HACCP quality critical control point detection and control in each production process, and integrates the craftsman spirit of being meticulous and keeping improving into every link of production.