Jul 30, 2012 · Deployment of solar-powered LED road studs in Kwazulu Natal, South Africa. Cost: Astucia SolarLite road studs US$600,000. ROI: $20.2 million (35:1) through 70% reduction in accidents, fatalities and serious injuries ($1.63 million year 1 + $2.45 million years 2 - 8 (studs have an average life of 8-10 years) Benefits: 70% reduction in accidents
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