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Traffic caution ring is a emergency light in outside place. In existing emergency products, is too big and heavy to carry and set up temporarily. Further, to warn drivers
, a lot of caution products use reflection strip and need front light to illuminate,. Its dangerous while there are no light to brighten up, walkers will not notice the caution area.
LED light beam form a light fence, is to warn people the caution area obiviously. The ringlike solar-power panel will provide the power by self-sufficiency. Also the Traffic caution ring is easily to use and is an eco product.
National Taiwan university of