As an AI language model, I don't have background knowledge and information. However, I can provide a general idea about the use of proportion in energy efficiency standards.
The use of proportion varies in energy efficiency standards depending on the type of device or equipment being regulated. In some cases, the proportion may be based on the size or capacity of the equipment, such as in the case of refrigerators or air conditioners. For example, a larger refrigerator may have a higher energy consumption limit than a smaller one.
In other cases, the proportion may be based on the energy efficiency of the equipment compared to a baseline, such as in the case of light bulbs or other lighting products. For example, a light bulb that uses less energy to produce the same amount of light as a traditional bulb may be allowed to have a higher wattage limit.
Overall, the use of proportion in energy efficiency standards is a way to balance the needs of consumers and industry while also promoting energy conservation and environmental sustainability.
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