Cities looking for cost-friendly ways to light up rivers and streams should take a look at Jihwan Park's Stepping-Stone Lights. These lights are illuminated by a water turbine, and can also be used to cross less dangerous rivers and streams.
Why pay to set up lights and lampposts when you can just let the water do the work for you? These Stepping-Stone Lights look and work better than alternative lighting systems, guaranteeing well-lit water paths.
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