Ant writes: "Yahoo! Green reports on the issue of lights powered "on and off that seem to use more energy than leaving them on. The answer is no, despite the common misperception that turning a light on creates a power surge. The thinking is that it's more economical to just leave a light on rather than pay the costs of flicking it back on. In reality, that "surge" lasts for only a fraction of second..." Seen on Blue's News."