Definition of an energy-saving product?
Answer:
It's all about the efficiency of the product and the amount of power (measured in watts) it consumes to do the job it was designed for, but remember, everything is relative.
For example, an incandescent light bulb is not as efficient as a compact fluorescent bulb, given the fact that the former will consume 75watts of energy to emit the same amount of light as the laters energy consumption of around 18watts.
You could say that the compact fluorescent is 4 times as efficient as the incandescent bulb. This is why people are changing all the bulbs in their house to compact fluorescent, as the power savings add up considerably.
Having said all that, it's no good replacing all the light bulbs in your house, if you are also going to sit in front of an electric radiator all day, which consumes around 2400watts of energy!
It is the total energy that is measured by the electricity meter in watt/hours that accounts for the energy consumed, so it is better to replace the higher energy devices for lower energy ones that do the same job for maximum gain in efficiency, not the lower energy ones which tend to be replaced first (although everything counts in the end).
The "true meaning"? The true meaning of anything is the meaning that people give to it. An energy saving product is any product that requires less energy to operate than a comparable product that is not energy saving.
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