Is it better to change the frequency or set the frequency of the water heating blanket?

The frequency conversion of water heating blanket is good. According to the relevant information, the frequency conversion water heater, also known as light porcelain frequency conversion water heater, is a national utility model patent, a high-tech epoch-making product, with automatic frequency conversion design and six-level automatic adjustment, with exquisite and fashionable appearance, that is, it can be heated immediately, with large amount of hot water, energy saving and environmental protection. It is safer and more energy-saving than the traditional direct-heating electric water heater.