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Emergency flashlight metro handle is the re-design of present metro handles. There is a electromagnetic induction power generator inside the handle. While the metro is running, the battery generates electricity through swaying. Once the metro is forced to stop in the middle of the dark tunnels because of an emergency, the handles get the signal from the metro and ready for being pulled out. Passengers can pull out the handles and use them as LED flashlights when escaping.
Zhang Hao Wang Meng Liu Jun E HengJia