2. Generally, high-power electrical appliances are large in size and need to be larger than1200 W. Common household appliances are: water heaters, bathroom yuba; The kitchen mainly includes induction cooker, microwave oven, oven, integrated stove and refrigerator. In the room, mainly air conditioning, there may be some heaters. The power of these appliances is basically above 1500 watts.

3. The constant temperature coaster is small in size, low in power consumption and easy to carry and use. It belongs to low-power electrical appliances with power 15-20w. Some constant temperature coasters are also designed with usb interface, which can be connected to computers, charging treasures and so on for heating, which is very convenient.