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A burst of heavy rain, water flooding low-lying land becomes this "water warning device" in addition to the warning provided at the intersection to allow motorists while driving to the road that is passable when the water reaches the outer extent of flooded roads provide good warning let the people know the original rescue workers or road range where water use battery-powered so when flooded street due to a fault and not the lighting effect can still continue to provide lighting inside out, greatly increasing security, internal structure and easy to install, use a very convenient
Douliu City, Yunlin, Taiwan