How do I know that the use of compact fluorescent light bulbs reduces consumption up to 80%?
Suffice it to say that, for example, a 100 W incandescent light bulb is the equivalent of a 20 W compact fluorescent. So when you have replaced one for the other, every time you switch on the light, you are saving 80 watts for every 100, or in other words, 80% [(100-20)/100] in electricity consumption.
