Someone recommended to me the electric saver, which is a pressure drop device between the meter and the equipment. Is that against the law?
A 1kW heater, for example, uses a step-down flow down device to make it 500W. The result is an extended heating time, plus the loss of the buck drop device itself, not saving electricity
The line before the meter is not illegal, the problem is that this saver is to reduce the power of the equipment, and did not play a real power-saving role, but also will reduce the efficiency of equipment, it is likely to outweigh the benefits
