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Install Tidal warning light on the breakwater.
Through the three colors of LED lights, it will alert people by change its color to protect people away from the danger of some unpredictable high tide.
It uses the organic chlorophyll battery to generate electricity, so it can charge up by using seawater.
When the sea level higher than it, it will change color to red, which means dangerous, to alert people had better not stay in the coast anymore. If there is a fast-rising tide , its can warn you to get away from the sea before the tide coming.
Organic Chlorophyll Bettery is a new kind of bettery which is biodegradable and eco-friendly.