Buy USB small appliances attention safety hazards

Nowadays, small appliances such as USB fans, refrigerators, hand warmers, electric shoes, humidifiers and other small appliances can be seen everywhere on the store and on the street. Prices range from tens to hundreds of yuan. However, these products are simple in packaging, and most of them do not have basic information such as manufacturer and date of shipment, and there is no “3C” certification mark.

When it's cold and dry, everyone will buy a warm handbag or humidifier with a USB port, connect to the USB port of the computer, and you can open the humidifier or warm the handbag. However, the voltage and current value of the computer's USB interface is not stable, and it will change with the use of the computer. Because the voltage and current are unstable, it is very easy to burn the computer's USB interface during the operation and connection with the computer. Or even damage the computer motherboard.

USB small appliances are products that have only emerged in recent years. Their positioning is rather vague. Therefore, they have not attracted the attention of relevant departments and there are no industry standards and specifications. When purchasing these products, consult, compare, and understand more.