So, here's a power cord which glows brighter the more energy that you use, which I think is a pretty cool concept, although I think it ought to work the other way around, that it gets brighter the more you don't use.
比如这根电线 当你用的电越多的时候 它就变得越亮 我认为这是一个非常棒的概念 但我觉得如果把它反过来使用，效果会更好 就是你用得越少 它就变得越亮