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When the house is on fire and full of heavy smoke, the best way for evacuating is
to crawl along the corner.Sometimes, it is difficult for people to find the way out
when they are bent.Life-saving socket is designed to solve this problem.
Originally, it is a socket for electrical appliances.When a fire occurs, the socket will
be flipped over and the LED on the top will indicate the direction for evacuating.
Yu-Wen Chen Pei-Rou Jhang Fang-Li Hung