Incandescent lamp, which has been produced for more than 100 years, will be disused in some countries for measure against global warming. Japan also indicated that they would exchange all of incandescent lamp for energy saving-lamp by 2012. The domestic companies for lighting announced that they would stop producing incandescent lamp from 2010 to 2012, too. In future, lighting will change to energy saving lamp, like fluorescent lamp or LED light bulb.