Plastic cups with candles in are set during the Candle Night campaign to call for saving the electricity with the lights off in Roppongi in Tokyo, capital of Japan, on June 21, 2009. [Xinhua]

A man lightens a candle to put it into a plastic cup during the Candle Night campaign to call for saving the electricity with the lights off in Roppongi in Tokyo, capital of Japan, on June 21, 2009. [Xinhua]